[{"date_updated":"2026-10-12T09:03:58Z","supplementarymaterial":"yes","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","PlanS_conform":"1","citation":{"short":"M. Pegoraro, R. Christensen, S.S. Sørensen, A.R. Lindbjerg, T. Du, Y. Bokor Bleile, A.M. Svane, C.A.N. Biscio, L. Fajstrup, M.M. Smedskjaer, Nature Communications 17 (2026).","ista":"Pegoraro M, Christensen R, Sørensen SS, Lindbjerg AR, Du T, Bokor Bleile Y, Svane AM, Biscio CAN, Fajstrup L, Smedskjaer MM. 2026. Predicting ionic conductivity of sulfide glass solid-state electrolytes using max-flow methodology. Nature Communications. 17, 10343.","ieee":"M. Pegoraro <i>et al.</i>, “Predicting ionic conductivity of sulfide glass solid-state electrolytes using max-flow methodology,” <i>Nature Communications</i>, vol. 17. Springer Nature, 2026.","mla":"Pegoraro, Matteo, et al. “Predicting Ionic Conductivity of Sulfide Glass Solid-State Electrolytes Using Max-Flow Methodology.” <i>Nature Communications</i>, vol. 17, 10343, Springer Nature, 2026, doi:<a href=\"https://doi.org/10.1038/s41467-026-77363-w\">10.1038/s41467-026-77363-w</a>.","ama":"Pegoraro M, Christensen R, Sørensen SS, et al. Predicting ionic conductivity of sulfide glass solid-state electrolytes using max-flow methodology. <i>Nature Communications</i>. 2026;17. doi:<a href=\"https://doi.org/10.1038/s41467-026-77363-w\">10.1038/s41467-026-77363-w</a>","apa":"Pegoraro, M., Christensen, R., Sørensen, S. S., Lindbjerg, A. R., Du, T., Bokor Bleile, Y., … Smedskjaer, M. M. (2026). Predicting ionic conductivity of sulfide glass solid-state electrolytes using max-flow methodology. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-026-77363-w\">https://doi.org/10.1038/s41467-026-77363-w</a>","chicago":"Pegoraro, Matteo, Rasmus Christensen, Søren S. Sørensen, Anders R. Lindbjerg, Tao Du, Yossi Bokor Bleile, Anne Marie Svane, Christophe A.N. Biscio, Lisbeth Fajstrup, and Morten M. Smedskjaer. “Predicting Ionic Conductivity of Sulfide Glass Solid-State Electrolytes Using Max-Flow Methodology.” <i>Nature Communications</i>. Springer Nature, 2026. <a href=\"https://doi.org/10.1038/s41467-026-77363-w\">https://doi.org/10.1038/s41467-026-77363-w</a>."},"DOAJ_listed":"1","project":[{"grant_number":"ESP 9584724","name":"Quantitative Unbiased Shape Analysis with Geometry &amp; Topology","_id":"9106a876-16d5-11f0-9cad-bbf11c9952f9"}],"oa_version":"Published Version","type":"journal_article","article_type":"original","abstract":[{"lang":"eng","text":"Disordered materials such as glasses are promising candidates as solid-state electrolytes for batteries, but they tend to exhibit low ionic conductivity and current methods for investigating and predicting the ionic conductivity of electrolyte materials are inefficient. Here, we propose a framework that summarizes the topological properties of the electrolyte material’s atomic structure with a weighted graph based on periodic boundary conditions. We then compute a variation of the max-flow algorithm, a commonly used model in continuum models of transportation and liquid flow, on this summary and show that it is compatible with the simulated periodic atomic structures. Using molecular dynamics simulations of various glassy solid-state electrolyte families including both mobile lithium and sodium ions, we validate the approach by showing a positive correlation between the area-normalized maximum flow predicted from the static glass structures and the ionic conductivity as obtained from the simulations, especially in the case of high-conductivity sulfide glass electrolytes. We envision that the developed methodology, which only relies on static atomic structure, will accelerate the discovery of highly conductive sulfide glassy electrolytes for high-performance all-solid-state batteries."}],"title":"Predicting ionic conductivity of sulfide glass solid-state electrolytes using max-flow methodology","_id":"23087","status":"public","author":[{"full_name":"Pegoraro, Matteo","last_name":"Pegoraro","first_name":"Matteo"},{"full_name":"Christensen, Rasmus","first_name":"Rasmus","last_name":"Christensen"},{"first_name":"Søren S.","last_name":"Sørensen","full_name":"Sørensen, Søren S."},{"full_name":"Lindbjerg, Anders R.","first_name":"Anders R.","last_name":"Lindbjerg"},{"first_name":"Tao","last_name":"Du","full_name":"Du, Tao"},{"full_name":"Bleile, Yossi","orcid":"0000-0002-4861-9174","id":"920a7385-7995-11ef-9bfd-8c434cd8f3c2","last_name":"Bleile","first_name":"Yossi"},{"full_name":"Svane, Anne Marie","last_name":"Svane","first_name":"Anne Marie"},{"first_name":"Christophe A.N.","last_name":"Biscio","full_name":"Biscio, Christophe A.N."},{"last_name":"Fajstrup","first_name":"Lisbeth","full_name":"Fajstrup, Lisbeth"},{"full_name":"Smedskjaer, Morten M.","last_name":"Smedskjaer","first_name":"Morten M."}],"date_created":"2026-10-11T22:02:03Z","language":[{"iso":"eng"}],"OA_place":"publisher","OA_type":"gold","acknowledgement":"We thank the Danish e-Infrastructure Cooperation (DeiC) for access to computational resources at Sophia and LUMI-C (DeiC-AAU-N5-202200005). This work was supported by the Independent Research Fund Denmark (1026-00037), European Union (ERC, NewGLASS, 101044664), and Danish Data Science Academy, which in turn is funded by the Novo Nordisk Foundation (NNF21SA0069429) and VILLUM FONDEN (40516). Y.B.B. acknowledges support from the Austrian Science Fund (FWF) 10.55776/ESP9584724.","publication_identifier":{"eissn":["2041-1723"]},"publication":"Nature Communications","scopus_import":"1","das_tickbox":"1","fulldoi":"https://doi.org/10.1038/s41467-026-77363-w","has_accepted_license":"1","file_date_updated":"2026-10-12T09:00:06Z","date_published":"2026-09-30T00:00:00Z","article_processing_charge":"Yes","publication_status":"published","pmid":1,"quality_controlled":"1","year":"2026","intvolume":"        17","tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"ddc":["500"],"volume":17,"researchdata_availability":"yes","doi":"10.1038/s41467-026-77363-w","file":[{"date_created":"2026-10-12T09:00:06Z","checksum":"eba760f5982a89f59664957e00c5d2d6","success":1,"relation":"main_file","creator":"dernst","access_level":"open_access","file_id":"23104","file_size":1889857,"file_name":"2026_NatureComm_Pegoraro.pdf","content_type":"application/pdf","date_updated":"2026-10-12T09:00:06Z"}],"article_number":"10343","external_id":{"pmid":["42811056"]},"publisher":"Springer Nature","month":"09","department":[{"_id":"HeEd"}],"dataavailabilitystatement":"All data supporting the findings of this study are available within the article and Supplementary Information files. Source data are provided with this paper. The developed code to perform the max-flow calculations is available as part of the Topological Materials Analysis (ToMA) library, which is available at Zenodo (https://doi.org/10.5281/zenodo.10781424) and Github (https://github.com/yossibokorbleile/TopologicalMaterialAnalysis), with documentation available at https://yossi.eu/toma/. To enhance usability, we have included a brief documentation on how to compile ToMA as well as a minimal working example of the code together with an example trajectory directly in the ToMA repository. LAMMPS is an open-source code available at https://lammps.sandia.gov.","day":"30","oa":1},{"OA_type":"gold","OA_place":"publisher","language":[{"iso":"eng"}],"publication":"The Cryosphere","scopus_import":"1","issue":"9","publication_identifier":{"eissn":["1994-0424"],"issn":["1994-0416"]},"acknowledgement":"We thank Evan Miles, Ramachandran Shankar, and Argha Banerjee for valuable discussions and inputs on experiment design and analysis. This research has been mainly funded by the SNSF (grant no. IZINZ2_209521) within the Indo-Swiss joint trilateral SNSF-ICSSR-MoES scheme and the earlier SNSF (grant no. 200021_169775).","page":"5365-5392","DOAJ_listed":"1","citation":{"ista":"Hardmeier F, Ferguson J, Vieli A. 2026. Feedbacks and timescales in the modelled transient response of debris-covered glaciers. The Cryosphere. 20(9), 5365–5392.","short":"F. Hardmeier, J. Ferguson, A. Vieli, The Cryosphere 20 (2026) 5365–5392.","ieee":"F. Hardmeier, J. Ferguson, and A. Vieli, “Feedbacks and timescales in the modelled transient response of debris-covered glaciers,” <i>The Cryosphere</i>, vol. 20, no. 9. Copernicus Publications, pp. 5365–5392, 2026.","mla":"Hardmeier, Florian, et al. “Feedbacks and Timescales in the Modelled Transient Response of Debris-Covered Glaciers.” <i>The Cryosphere</i>, vol. 20, no. 9, Copernicus Publications, 2026, pp. 5365–92, doi:<a href=\"https://doi.org/10.5194/tc-20-5365-2026\">10.5194/tc-20-5365-2026</a>.","ama":"Hardmeier F, Ferguson J, Vieli A. Feedbacks and timescales in the modelled transient response of debris-covered glaciers. <i>The Cryosphere</i>. 2026;20(9):5365-5392. doi:<a href=\"https://doi.org/10.5194/tc-20-5365-2026\">10.5194/tc-20-5365-2026</a>","apa":"Hardmeier, F., Ferguson, J., &#38; Vieli, A. (2026). Feedbacks and timescales in the modelled transient response of debris-covered glaciers. <i>The Cryosphere</i>. Copernicus Publications. <a href=\"https://doi.org/10.5194/tc-20-5365-2026\">https://doi.org/10.5194/tc-20-5365-2026</a>","chicago":"Hardmeier, Florian, James Ferguson, and Andreas Vieli. “Feedbacks and Timescales in the Modelled Transient Response of Debris-Covered Glaciers.” <i>The Cryosphere</i>. Copernicus Publications, 2026. <a href=\"https://doi.org/10.5194/tc-20-5365-2026\">https://doi.org/10.5194/tc-20-5365-2026</a>."},"date_updated":"2026-10-12T09:21:04Z","supplementarymaterial":"yes","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","PlanS_conform":"1","title":"Feedbacks and timescales in the modelled transient response of debris-covered glaciers","_id":"23091","author":[{"first_name":"Florian","last_name":"Hardmeier","full_name":"Hardmeier, Florian"},{"full_name":"Ferguson, James","last_name":"Ferguson","first_name":"James","id":"05fd8d9b-bd43-11eb-8d36-f8fb1cc98040"},{"last_name":"Vieli","first_name":"Andreas","full_name":"Vieli, Andreas"}],"date_created":"2026-10-11T22:02:04Z","status":"public","oa_version":"None","type":"journal_article","article_type":"original","abstract":[{"text":"Glaciers worldwide are becoming increasingly debris-covered, yet many aspects within the coupled glacier-debris system are not well-understood. While the insulating effect of continuous debris layers is well-known, the transient feedbacks with glacier dynamics are poorly understood. The main aim of this study is to better understand the complex transient glacier response and debris-induced feedbacks through numerical flow modelling. We present an improved flowline model that couples ice flow, depth-resolved debris transport, and debris cover impact on mass balance. This approach allows for a detailed examination of the dynamics of debris-covered glaciers under transient forcing conditions of climate and debris input over extended timescales. Our results indicate that low-amplitude, decade-scale variability in debris or climate forcing does not substantially impact glacier evolution. However, large debris supply events can have a sustained impact. We find that debris-covered glacier response to warming climate forcing is non-monotonic, with distinct phases of thinning, retreat, and long-term re-advance. We attribute this to a separate, longer timescale process of englacial debris transport. Additionally, feedbacks in the englacial debris trajectory and complex bed topography further amplify the non-linear pattern of retreat in the transient glacier response to warming.","lang":"eng"}],"volume":20,"researchdata_availability":"yes","doi":"10.5194/tc-20-5365-2026","file":[{"file_id":"23105","content_type":"application/pdf","date_updated":"2026-10-12T09:17:51Z","file_name":"2026_Cryosphere_Hardmeier.pdf","file_size":9284677,"success":1,"date_created":"2026-10-12T09:17:51Z","checksum":"b934b69f66efac91c08680a513bf74d9","access_level":"open_access","creator":"dernst","relation":"main_file"}],"dataavailabilitystatement":"The model presented in this study as well as the code and synthetic data (generated from model runs) are available on Zenodo: https://doi.org/10.5281/zenodo.22687411 (Hardmeier et al., 2026). Two animations, referenced to in the text as Video Supplement 1 and 2, are available on Zenodo: https://doi.org/10.5281/zenodo.22687411 (Hardmeier et al., 2026).","day":"21","oa":1,"publisher":"Copernicus Publications","month":"09","department":[{"_id":"TiVo"}],"has_accepted_license":"1","date_published":"2026-09-21T00:00:00Z","file_date_updated":"2026-10-12T09:17:51Z","article_processing_charge":"Yes","das_tickbox":"1","fulldoi":"https://doi.org/10.5194/tc-20-5365-2026","ddc":["550","000"],"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"publication_status":"published","year":"2026","quality_controlled":"1","intvolume":"        20"},{"supplementarymaterial":"yes","date_updated":"2026-10-12T08:36:40Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"apa":"Galanis, M., Hosten, O., Arvanitaki, A., &#38; Dimopoulos, S. (2026). Superradiant interactions for relic detection with entangled nuclear spins. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/Z2D9-4GV6\">https://doi.org/10.1103/Z2D9-4GV6</a>","chicago":"Galanis, Marios, Onur Hosten, Asimina Arvanitaki, and Savas Dimopoulos. “Superradiant Interactions for Relic Detection with Entangled Nuclear Spins.” <i>Physical Review A</i>. American Physical Society, 2026. <a href=\"https://doi.org/10.1103/Z2D9-4GV6\">https://doi.org/10.1103/Z2D9-4GV6</a>.","ista":"Galanis M, Hosten O, Arvanitaki A, Dimopoulos S. 2026. Superradiant interactions for relic detection with entangled nuclear spins. Physical Review A. 113(6), 063714.","ieee":"M. Galanis, O. Hosten, A. Arvanitaki, and S. Dimopoulos, “Superradiant interactions for relic detection with entangled nuclear spins,” <i>Physical Review A</i>, vol. 113, no. 6. American Physical Society, 2026.","short":"M. Galanis, O. Hosten, A. Arvanitaki, S. Dimopoulos, Physical Review A 113 (2026).","mla":"Galanis, Marios, et al. “Superradiant Interactions for Relic Detection with Entangled Nuclear Spins.” <i>Physical Review A</i>, vol. 113, no. 6, 063714, American Physical Society, 2026, doi:<a href=\"https://doi.org/10.1103/Z2D9-4GV6\">10.1103/Z2D9-4GV6</a>.","ama":"Galanis M, Hosten O, Arvanitaki A, Dimopoulos S. Superradiant interactions for relic detection with entangled nuclear spins. <i>Physical Review A</i>. 2026;113(6). doi:<a href=\"https://doi.org/10.1103/Z2D9-4GV6\">10.1103/Z2D9-4GV6</a>"},"type":"journal_article","oa_version":"Preprint","article_type":"original","abstract":[{"lang":"eng","text":"We recently showed that macroscopic nuclear spin ensembles prepared in coherent spin states can dramatically enhance the interaction rates of weakly interacting cosmic relics, such as dark matter and the cosmic neutrino background, through collective quantum effects analogous to Dicke superradiance, where the deexcitation and excitation rates scale as the square of the number of spins 𝑁2. We thus coined these processes superradiant interactions. In this paper, we propose a protocol to realize this enhancement and boost the discovery potential for such relics. We show how concepts from quantum optics can be adapted to nuclear spins coupled to superconducting circuits, enabling high-sensitivity systems. The spins are first initialized into a coherent spin state via a 𝜋/2 Rabi pulse from the ground state. When the circuit is sufficiently detuned from resonance, the spin-circuit interaction implements a squeezing Hamiltonian. Because squeezing must outpace spin relaxation and dephasing, the protocol favors macroscopic ensembles and high-quality superconducting circuits. During this squeezing phase, the standard quantum variance is reduced by up to 4.8 orders of magnitude, equivalent to 48 dB of squeezing, for circuits with quality factors 𝑄∼10^8–10^9. The signal imprinted on the spins during the squeezing protocol can be magnified by further utilizing the squeezing interactions, easing the requirement for shot-noise-limited readout. This protocol has the potential to significantly accelerate axion and dark photon dark matter searches and extend the reach of existing axion experiments to probe QCD axion-nuclear spin couplings. More broadly, it paves the way for detecting coherent inelastic interactions from other cosmic relics, most notably the cosmic neutrino background, and establishes nuclear-spin-based systems as a class of quantum, ultra-low-threshold detectors."}],"title":"Superradiant interactions for relic detection with entangled nuclear spins","_id":"23057","author":[{"full_name":"Galanis, Marios","last_name":"Galanis","first_name":"Marios"},{"id":"4C02D85E-F248-11E8-B48F-1D18A9856A87","last_name":"Hosten","first_name":"Onur","full_name":"Hosten, Onur","orcid":"0000-0002-2031-204X"},{"full_name":"Arvanitaki, Asimina","last_name":"Arvanitaki","first_name":"Asimina"},{"first_name":"Savas","last_name":"Dimopoulos","full_name":"Dimopoulos, Savas"}],"date_created":"2026-10-04T22:01:57Z","status":"public","language":[{"iso":"eng"}],"OA_type":"green","OA_place":"repository","acknowledgement":"We are grateful to K. Irwin for illuminating discussions, and M. Schleier-Smith, M. Kasevich, J. Hogan, N. Rapidis, M. Fedderke, A. Geraci, G. Gratta, D. Schuster, D. Budker, and A. Sushkov for very valuable conversations. O.H. acknowledges support by the Institute of Science and Technology Austria (ISTA). A.A., S.D., and M.G. acknowledge the hospitality provided by ISTA, where part of this work was being completed. A.A., M.G., and O.H. acknowledge the hospitality provided by the Leinweber Institute for Theoretical Physics at Stanford, where part of this work was being completed. S.D. acknowledges support by NSF Grant No. PHY-2310429 and the Gordon and Betty Moore Foundation Grant No. GBMF7946, and Perimeter Institute and its hospitality. Research at Perimeter Institute is supported in part by the Government of Canada through the Department of Innovation, Science and Economic Development and by the Province of Ontario through the Ministry of Colleges and Universities. A.A. is grateful for the support of the Stavros Niarchos Foundation.","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"publication":"Physical Review A","scopus_import":"1","issue":"6","das_tickbox":"1","fulldoi":"https://doi.org/10.1103/Z2D9-4GV6","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2508.20520","open_access":"1"}],"arxiv":1,"date_published":"2026-06-01T00:00:00Z","article_processing_charge":"No","publication_status":"published","year":"2026","quality_controlled":"1","intvolume":"       113","volume":113,"doi":"10.1103/Z2D9-4GV6","researchdata_availability":"upon request","article_number":"063714","external_id":{"arxiv":["2508.20520"]},"publisher":"American Physical Society","department":[{"_id":"OnHo"}],"month":"06","dataavailabilitystatement":"The data that support the findings of this article are not publicly available. The data are available from the authors upon reasonable request.","day":"01","oa":1,"corr_author":"1"},{"fulldoi":"https://doi.org/10.1007/978-1-0716-5603-7_13","date_published":"2026-10-01T00:00:00Z","alternative_title":["Methods in Molecular Biology"],"article_processing_charge":"No","keyword":["Root growth","Root development","Root meristem","Cell cycle","Cell division","S-phase","EdU","Arabidopsis thaliana","Microscopy"],"publication_status":"published","pmid":1,"quality_controlled":"1","year":"2026","intvolume":"      3086","place":"New York","volume":3086,"doi":"10.1007/978-1-0716-5603-7_13","series_title":"MIMB","external_id":{"pmid":["42814359"]},"publisher":"Springer","department":[{"_id":"JiFr"}],"month":"10","day":"01","date_updated":"2026-10-12T09:13:28Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"165-176","citation":{"mla":"Jacob, Tilman, et al. “EdU-Based Quantitative Analysis of Cell Proliferation in Arabidopsis Root Meristems.” <i>Root Development</i>, vol. 3086, Springer, 2026, pp. 165–76, doi:<a href=\"https://doi.org/10.1007/978-1-0716-5603-7_13\">10.1007/978-1-0716-5603-7_13</a>.","ama":"Jacob T, Ai H, Quint M. EdU-Based Quantitative Analysis of Cell Proliferation in Arabidopsis Root Meristems. In: <i>Root Development</i>. Vol 3086. MIMB. New York: Springer; 2026:165-176. doi:<a href=\"https://doi.org/10.1007/978-1-0716-5603-7_13\">10.1007/978-1-0716-5603-7_13</a>","ista":"Jacob T, Ai H, Quint M. 2026.EdU-Based Quantitative Analysis of Cell Proliferation in Arabidopsis Root Meristems. In: Root Development. Methods in Molecular Biology, vol. 3086, 165–176.","short":"T. Jacob, H. Ai, M. Quint, in:, Root Development, Springer, New York, 2026, pp. 165–176.","ieee":"T. Jacob, H. Ai, and M. Quint, “EdU-Based Quantitative Analysis of Cell Proliferation in Arabidopsis Root Meristems,” in <i>Root Development</i>, vol. 3086, New York: Springer, 2026, pp. 165–176.","chicago":"Jacob, Tilman, Haiyue Ai, and Marcel Quint. “EdU-Based Quantitative Analysis of Cell Proliferation in Arabidopsis Root Meristems.” In <i>Root Development</i>, 3086:165–76. MIMB. New York: Springer, 2026. <a href=\"https://doi.org/10.1007/978-1-0716-5603-7_13\">https://doi.org/10.1007/978-1-0716-5603-7_13</a>.","apa":"Jacob, T., Ai, H., &#38; Quint, M. (2026). EdU-Based Quantitative Analysis of Cell Proliferation in Arabidopsis Root Meristems. In <i>Root Development</i> (Vol. 3086, pp. 165–176). New York: Springer. <a href=\"https://doi.org/10.1007/978-1-0716-5603-7_13\">https://doi.org/10.1007/978-1-0716-5603-7_13</a>"},"oa_version":"None","type":"book_chapter","abstract":[{"lang":"eng","text":"The division of a mother cell into two daughter cells is a fundamental process in biology, involving the transfer of genomic information to the next generation of cells. In plant roots, cell divisions occur in the root apical meristem, a specialized tissue located at the plant’s root tip. Cell proliferation rates in the root apical meristem shape root growth, thereby contributing to general development as well as the acclimatization to stressful environmental conditions through phenotypic plasticity. Here, we present a protocol for the microscopical analysis of cell proliferation in Arabidopsis thaliana root meristems by 5-ethynyl-2ʹ-deoxyuridine (EdU) staining. EdU, a thymine-analog, is incorporated into newly synthesized DNA of proliferative cells during the S-phase of the cell cycle. Subsequently, EdU-containing nuclei can be labeled with a fluorophore and detected by confocal laser scanning microscopy. The combination of the EdU assay with cell wall staining enables the quantification of root meristem architecture parameters and cell division activity from microscopic images. Together, this can elucidate how root meristems respond to changes in environmental conditions or address fundamental questions of developmental plant biology."}],"title":"EdU-Based Quantitative Analysis of Cell Proliferation in Arabidopsis Root Meristems","_id":"23086","date_created":"2026-10-11T22:02:03Z","author":[{"full_name":"Jacob, Tilman","last_name":"Jacob","first_name":"Tilman"},{"full_name":"Ai, Haiyue","id":"71a6871f-c08f-11ee-886c-c975579c368c","first_name":"Haiyue","last_name":"Ai"},{"full_name":"Quint, Marcel","first_name":"Marcel","last_name":"Quint"}],"status":"public","language":[{"iso":"eng"}],"OA_type":"closed access","publication_identifier":{"eisbn":["9781071656037"],"eissn":["1940-6029"]},"publication":"Root Development","scopus_import":"1"},{"conference":{"start_date":"2026-06-15","end_date":"2026-06-18","name":"Quantum 2.0","location":"Glasgow, United Kingdom"},"date_published":"2026-09-01T00:00:00Z","alternative_title":["Technical Digest Series"],"article_processing_charge":"No","citation":{"apa":"Militaru, A., Werner, T., Riyazi, E., Hawaldar, S., Sahu, R., Arnold, G. M., … Fink, J. M. (2026). Electro-optic conversion of itinerant Fock states. In <i>Quantum 2.0 Conference and Exhibition</i>. Glasgow, United Kingdom: Optica Publishing Group.","chicago":"Militaru, Andrei, Thomas Werner, Erfan Riyazi, Samarth Hawaldar, Rishabh Sahu, Georg M Arnold, Paul Falthansl-Scheinecker, et al. “Electro-Optic Conversion of Itinerant Fock States.” In <i>Quantum 2.0 Conference and Exhibition</i>. Optica Publishing Group, 2026.","ieee":"A. Militaru <i>et al.</i>, “Electro-optic conversion of itinerant Fock states,” in <i>Quantum 2.0 Conference and Exhibition</i>, Glasgow, United Kingdom, 2026.","short":"A. Militaru, T. Werner, E. Riyazi, S. Hawaldar, R. Sahu, G.M. Arnold, P. Falthansl-Scheinecker, J.A. Sanchez Naranjo, D. Loi, L. Kapoor, M. Zemlicka, L. Qiu, J.M. Fink, in:, Quantum 2.0 Conference and Exhibition, Optica Publishing Group, 2026.","ista":"Militaru A, Werner T, Riyazi E, Hawaldar S, Sahu R, Arnold GM, Falthansl-Scheinecker P, Sanchez Naranjo JA, Loi D, Kapoor L, Zemlicka M, Qiu L, Fink JM. 2026. Electro-optic conversion of itinerant Fock states. Quantum 2.0 Conference and Exhibition. Quantum 2.0, Technical Digest Series, , QM2A.1.","ama":"Militaru A, Werner T, Riyazi E, et al. Electro-optic conversion of itinerant Fock states. In: <i>Quantum 2.0 Conference and Exhibition</i>. Optica Publishing Group; 2026.","mla":"Militaru, Andrei, et al. “Electro-Optic Conversion of Itinerant Fock States.” <i>Quantum 2.0 Conference and Exhibition</i>, QM2A.1, Optica Publishing Group, 2026."},"date_updated":"2026-10-12T08:53:25Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Electro-optic conversion of itinerant Fock states","_id":"23056","status":"public","author":[{"full_name":"Militaru, Andrei","id":"d67706f8-8eb1-11ee-ad1b-9c30dfa19e0b","first_name":"Andrei","last_name":"Militaru"},{"full_name":"Werner, Thomas","orcid":"0009-0001-2346-5236","id":"1fcd8497-dba3-11ea-a45e-c6fbd715f7c7","last_name":"Werner","first_name":"Thomas"},{"first_name":"Erfan","last_name":"Riyazi","id":"53322f94-5355-11ee-ae5a-ff6f81c87d51","full_name":"Riyazi, Erfan"},{"full_name":"Hawaldar, Samarth","orcid":"0000-0002-1965-4309","first_name":"Samarth","last_name":"Hawaldar","id":"221708e1-1ff6-11ee-9fa6-85146607433e"},{"full_name":"Sahu, Rishabh","orcid":"0000-0001-6264-2162","first_name":"Rishabh","last_name":"Sahu","id":"47D26E34-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Arnold, Georg M","orcid":"0000-0003-1397-7876","last_name":"Arnold","first_name":"Georg M","id":"3770C838-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Falthansl-Scheinecker, Paul","id":"85b43b21-15b2-11ec-abd3-e2c252cc2285","last_name":"Falthansl-Scheinecker","first_name":"Paul"},{"last_name":"Sanchez Naranjo","first_name":"Jennifer Anais","id":"0fd10295-ebd4-11ec-b0f1-c1c8465143f9","full_name":"Sanchez Naranjo, Jennifer Anais"},{"full_name":"Loi, Dante","first_name":"Dante","last_name":"Loi","id":"a24803ec-c619-11f1-873b-95804e96f22f"},{"orcid":"0000-0001-8319-2148","full_name":"Kapoor, Lucky","first_name":"Lucky","last_name":"Kapoor","id":"84b9700b-15b2-11ec-abd3-831089e67615"},{"orcid":"0009-0005-0878-3032","full_name":"Zemlicka, Martin","id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87","first_name":"Martin","last_name":"Zemlicka"},{"last_name":"Qiu","first_name":"Liu","id":"45e99c0d-1eb1-11eb-9b96-ed8ab2983cac","orcid":"0000-0003-4345-4267","full_name":"Qiu, Liu"},{"full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","first_name":"Johannes M","last_name":"Fink"}],"date_created":"2026-10-04T22:01:57Z","publication_status":"published","oa_version":"None","type":"conference","year":"2026","abstract":[{"lang":"eng","text":"Superconducting qubits face scaling challenges due to millikelvin temperature requirements. Here we demonstrate the generation and low-noise upconversion of single microwave photons to telecom frequencies, paving the way for quantum networks with superconducting qubits."}],"article_number":"QM2A.1","OA_type":"closed access","language":[{"iso":"eng"}],"day":"01","publication":"Quantum 2.0 Conference and Exhibition","corr_author":"1","scopus_import":"1","publisher":"Optica Publishing Group","month":"09","department":[{"_id":"JoFi"},{"_id":"GradSch"},{"_id":"GeKa"}],"publication_identifier":{"isbn":["9781957171616"]}},{"article_number":"252","volume":997,"doi":"10.3847/1538-4357/ae24e1","file":[{"file_name":"2026_AstrophysicalJour_Zhang.pdf","content_type":"application/pdf","date_updated":"2026-10-12T11:51:24Z","file_size":5995619,"file_id":"23110","access_level":"open_access","relation":"main_file","creator":"dernst","success":1,"checksum":"547c63f9265be5d41efdc555a25423cc","date_created":"2026-10-12T11:51:24Z"}],"day":"01","oa":1,"external_id":{"arxiv":["2508.08577"]},"publisher":"IOP Publishing","month":"02","department":[{"_id":"JoMa"}],"has_accepted_license":"1","date_published":"2026-02-01T00:00:00Z","file_date_updated":"2026-10-12T11:51:24Z","article_processing_charge":"Yes","fulldoi":"https://doi.org/10.3847/1538-4357/ae24e1","arxiv":1,"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"ddc":["520"],"publication_status":"published","quality_controlled":"1","year":"2026","intvolume":"       997","OA_place":"publisher","OA_type":"gold","language":[{"iso":"eng"}],"publication":"The Astrophysical Journal","scopus_import":"1","issue":"2","publication_identifier":{"issn":["0004-637X"],"eissn":["1538-4357"]},"acknowledgement":"We thank Alan Pearl for his contribution to estimating the cosmic variance contribution to the number density uncertainties in this work. We thank Hans-Walter Rix for the valuable discussion on the selection function and correcting the spectroscopic incompleteness of massive quiescent galaxies in RUBIES.\r\n\r\nSome of the data products presented herein were retrieved from the Dawn JWST Archive (DJA). DJA is an initiative of the Cosmic Dawn Center (DAWN), which is funded by the Danish National Research Foundation under grant DNRF140.\r\n\r\nThe Cosmic Dawn Center is funded by the Danish National Research Foundation (DNRF) under grant #140.\r\n\r\nSupport for this work was provided by The Brinson Foundation through a Brinson Prize Fellowship grant.\r\n\r\nR.B. gratefully acknowledges support from the Research Corporation for Scientific Advancement (RCSA) Cottrell Scholar Award ID No: 27587.\r\n\r\nThe work of C.C.W. is supported by NOIRLab, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation.\r\n\r\nT.B.M. was supported by a CIERA Postdoctoral Fellowship.\r\n\r\nThis work is based in part on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program numbers 1180, 1181, 1210, 1211, 1213, 1214, 1215, 1286, 1345, 1433, 1747, 2028, 2073, 2198, 2282, 2561, 2565, 2750, 2756, 2767, 3073, 3215, 4233, 4446, 4557, 6368, 6541, and 6585. The specific observations analyzed can be accessed via DOI: 10.17909/sjsj-8p46.\r\n\r\nSupport for program No. 4233 was provided by NASA through a grant from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127.\r\n\r\nThe authors acknowledge the CEERS and PRIMER teams for developing their observing program with a zero-exclusive access period.\r\n\r\nFacility: JWST - James Webb Space Telescope.\r\n\r\nSoftware: Astropy (Astropy Collaboration et al. 2013, 2018, 2022), Scipy (P. Virtanen et al. 2020), Photutils (L. Bradley 2023), SpectRes (A. C. Carnall 2017), Scikit-learn (F. Pedregosa et al. 2011), Prospector (B. Johnson & J. Leja 2017; J. Leja et al. 2017; B. Johnson et al. 2021).","citation":{"apa":"Zhang, Y., De Graaff, A., Setton, D. J., Price, S. H., Bezanson, R., Del P. Lagos, C., … Williams, C. C. (2026). RUBIES spectroscopically confirms the high number density of quiescent galaxies from2&#60;z&#60;5. <i>The Astrophysical Journal</i>. IOP Publishing. <a href=\"https://doi.org/10.3847/1538-4357/ae24e1\">https://doi.org/10.3847/1538-4357/ae24e1</a>","chicago":"Zhang, Yunchong, Anna De Graaff, David J. Setton, Sedona H. Price, Rachel Bezanson, Claudia Del P. Lagos, Sam E. Cutler, et al. “RUBIES Spectroscopically Confirms the High Number Density of Quiescent Galaxies From2&#60;z&#60;5.” <i>The Astrophysical Journal</i>. IOP Publishing, 2026. <a href=\"https://doi.org/10.3847/1538-4357/ae24e1\">https://doi.org/10.3847/1538-4357/ae24e1</a>.","ista":"Zhang Y, De Graaff A, Setton DJ, Price SH, Bezanson R, Del P. Lagos C, Cutler SE, Mcconachie I, Cleri NJ, Cooper OR, Gottumukkala R, Greene JE, Hirschmann M, Khullar G, Labbe I, Leja J, Maseda MV, Matthee JJ, Miller TB, Nanayakkara T, Suess KA, Wang B, Whitaker KE, Williams CC. 2026. RUBIES spectroscopically confirms the high number density of quiescent galaxies from2&#60;z&#60;5. The Astrophysical Journal. 997(2), 252.","ieee":"Y. Zhang <i>et al.</i>, “RUBIES spectroscopically confirms the high number density of quiescent galaxies from2&#60;z&#60;5,” <i>The Astrophysical Journal</i>, vol. 997, no. 2. IOP Publishing, 2026.","short":"Y. Zhang, A. De Graaff, D.J. Setton, S.H. Price, R. Bezanson, C. Del P. Lagos, S.E. Cutler, I. Mcconachie, N.J. Cleri, O.R. Cooper, R. Gottumukkala, J.E. Greene, M. Hirschmann, G. Khullar, I. Labbe, J. Leja, M.V. Maseda, J.J. Matthee, T.B. Miller, T. Nanayakkara, K.A. Suess, B. Wang, K.E. Whitaker, C.C. Williams, The Astrophysical Journal 997 (2026).","ama":"Zhang Y, De Graaff A, Setton DJ, et al. RUBIES spectroscopically confirms the high number density of quiescent galaxies from2&#60;z&#60;5. <i>The Astrophysical Journal</i>. 2026;997(2). doi:<a href=\"https://doi.org/10.3847/1538-4357/ae24e1\">10.3847/1538-4357/ae24e1</a>","mla":"Zhang, Yunchong, et al. “RUBIES Spectroscopically Confirms the High Number Density of Quiescent Galaxies From2&#60;z&#60;5.” <i>The Astrophysical Journal</i>, vol. 997, no. 2, 252, IOP Publishing, 2026, doi:<a href=\"https://doi.org/10.3847/1538-4357/ae24e1\">10.3847/1538-4357/ae24e1</a>."},"DOAJ_listed":"1","date_updated":"2026-10-12T11:55:05Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","PlanS_conform":"1","title":"RUBIES spectroscopically confirms the high number density of quiescent galaxies from2<z<5","_id":"23092","author":[{"last_name":"Zhang","first_name":"Yunchong","full_name":"Zhang, Yunchong"},{"first_name":"Anna","last_name":"De Graaff","full_name":"De Graaff, Anna"},{"full_name":"Setton, David J.","last_name":"Setton","first_name":"David J."},{"last_name":"Price","first_name":"Sedona H.","full_name":"Price, Sedona H."},{"last_name":"Bezanson","first_name":"Rachel","full_name":"Bezanson, Rachel"},{"full_name":"Del P. Lagos, Claudia","first_name":"Claudia","last_name":"Del P. Lagos"},{"full_name":"Cutler, Sam E.","last_name":"Cutler","first_name":"Sam E."},{"first_name":"Ian","last_name":"Mcconachie","full_name":"Mcconachie, Ian"},{"last_name":"Cleri","first_name":"Nikko J.","full_name":"Cleri, Nikko J."},{"last_name":"Cooper","first_name":"Olivia R.","full_name":"Cooper, Olivia R."},{"full_name":"Gottumukkala, Rashmi","first_name":"Rashmi","last_name":"Gottumukkala"},{"full_name":"Greene, Jenny E.","first_name":"Jenny E.","last_name":"Greene"},{"first_name":"Michaela","last_name":"Hirschmann","full_name":"Hirschmann, Michaela"},{"first_name":"Gourav","last_name":"Khullar","full_name":"Khullar, Gourav"},{"first_name":"Ivo","last_name":"Labbe","full_name":"Labbe, Ivo"},{"full_name":"Leja, Joel","first_name":"Joel","last_name":"Leja"},{"full_name":"Maseda, Michael V.","last_name":"Maseda","first_name":"Michael V."},{"first_name":"Jorryt J","last_name":"Matthee","id":"7439a258-f3c0-11ec-9501-9df22fe06720","orcid":"0000-0003-2871-127X","full_name":"Matthee, Jorryt J"},{"full_name":"Miller, Tim B.","first_name":"Tim B.","last_name":"Miller"},{"full_name":"Nanayakkara, Themiya","last_name":"Nanayakkara","first_name":"Themiya"},{"full_name":"Suess, Katherine A.","first_name":"Katherine A.","last_name":"Suess"},{"last_name":"Wang","first_name":"Bingjie","full_name":"Wang, Bingjie"},{"first_name":"Katherine E.","last_name":"Whitaker","full_name":"Whitaker, Katherine E."},{"last_name":"Williams","first_name":"Christina C.","full_name":"Williams, Christina C."}],"date_created":"2026-10-11T22:02:05Z","status":"public","oa_version":"Published Version","type":"journal_article","article_type":"original","abstract":[{"text":"We present the number density of massive (log(M*/Mo)> 10.3) quiescent galaxies at 2 < z < 5 using JWST NIRSpec PRISM spectra. This work relies on spectra from RUBIES, which provides excellent data quality and an unparalleled, well-defined targeting strategy to robustly infer physical properties and number densities. We identify quiescent galaxy candidates within RUBIES through principal component analysis and construct a final sample using star formation histories derived from spectrophotometric fitting of the NIRSpec PRISM spectra and NIRCam photometry. By inverting the RUBIES selection function, we correct for survey incompleteness and calculate the number density of massive quiescent galaxies at these redshifts, providing the most complete spectroscopic estimates prior to cosmic noon to date. We find that early massive quiescent galaxies are surprisingly common (≳10−5 Mpc−3 by 4 < z < 5), which is consistent with previous studies based on JWST photometry alone and/or in smaller survey areas. We compare our number densities with predictions from six state-of-the-art cosmological galaxy formation simulations. At z > 3, most simulations fail to produce enough massive quiescent galaxies, suggesting the treatment of feedback and/or the channels for early efficient formation are incomplete in most galaxy evolution models.","lang":"eng"}]},{"abstract":[{"text":"Land-use change, such as the transformation of woody ecosystems into open pastures, acts as a strong ecological filter, favouring some species while excluding others according to differences in ecological niche breadth. Understanding how differences in niche breadth influence species responses under anthropogenic filters is crucial to anticipate their persistence or displacement. In this study, we quantified realized niche breadth in two sympatric ecosystem engineers, the Neotropical leaf-cutter ants Atta cephalotes and Atta laevigata, to test whether breadth differences are consistent with specialist and generalist ecological strategies. We characterized realized niche breadth across fine-scale environmental gradients by integrating hemispherical photography, microclimatic data, mound architecture, and edaphic profiles from 114 colonies across a regional transect in the Colombian Andes, alongside macroclimatic data from Copernicus. Principal Component Analysis (PCA) and PERMANOVA identified canopy openness and bushes- and tree-type vegetation density as the principal axes of interspecific niche partitioning. The observed differences in realized niche breadth were consistent with specialist and generalist ecological strategies. A. laevigata was predominantly associated with open-canopy areas, warmer micro- and macroclimatic conditions, and narrower edaphic dispersion. In contrast, A. cephalotes occupied a wider range of microhabitat conditions. This broader realized niche breadth is compatible with previous reports of A. cephalotes occurring in urban areas. Together, these findings suggest that niche breadth may influence how Neotropical leaf-cutter ants respond to habitat transformation, helping to understand the ecological consequences of land-use change.","lang":"eng"}],"oa_version":"Published Version","type":"journal_article","article_type":"original","status":"public","author":[{"full_name":"Garcia Castillo, Diego Fernando","last_name":"Garcia Castillo","first_name":"Diego Fernando","id":"ae681a14-dc74-11ea-a0a7-c6ef18161701"}],"date_created":"2026-10-11T22:02:05Z","title":"Generalism vs. specialization: Does niche breadth influence species responses to anthropogenic land-use change in Neotropical leaf-cutter ants?","_id":"23093","PlanS_conform":"1","supplementarymaterial":"yes","date_updated":"2026-10-12T11:43:26Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","DOAJ_listed":"1","page":"e0351518","citation":{"apa":"Garcia Castillo, D. F. (2026). Generalism vs. specialization: Does niche breadth influence species responses to anthropogenic land-use change in Neotropical leaf-cutter ants? <i>Plos One</i>. Public Library of Science. <a href=\"https://doi.org/10.1371/journal.pone.0351518\">https://doi.org/10.1371/journal.pone.0351518</a>","chicago":"Garcia Castillo, Diego Fernando. “Generalism vs. Specialization: Does Niche Breadth Influence Species Responses to Anthropogenic Land-Use Change in Neotropical Leaf-Cutter Ants?” <i>Plos One</i>. Public Library of Science, 2026. <a href=\"https://doi.org/10.1371/journal.pone.0351518\">https://doi.org/10.1371/journal.pone.0351518</a>.","short":"D.F. Garcia Castillo, Plos One 21 (2026) e0351518.","ista":"Garcia Castillo DF. 2026. Generalism vs. specialization: Does niche breadth influence species responses to anthropogenic land-use change in Neotropical leaf-cutter ants? Plos One. 21(10), e0351518.","ieee":"D. F. Garcia Castillo, “Generalism vs. specialization: Does niche breadth influence species responses to anthropogenic land-use change in Neotropical leaf-cutter ants?,” <i>Plos One</i>, vol. 21, no. 10. Public Library of Science, p. e0351518, 2026.","ama":"Garcia Castillo DF. Generalism vs. specialization: Does niche breadth influence species responses to anthropogenic land-use change in Neotropical leaf-cutter ants? <i>Plos One</i>. 2026;21(10):e0351518. doi:<a href=\"https://doi.org/10.1371/journal.pone.0351518\">10.1371/journal.pone.0351518</a>","mla":"Garcia Castillo, Diego Fernando. “Generalism vs. Specialization: Does Niche Breadth Influence Species Responses to Anthropogenic Land-Use Change in Neotropical Leaf-Cutter Ants?” <i>Plos One</i>, vol. 21, no. 10, Public Library of Science, 2026, p. e0351518, doi:<a href=\"https://doi.org/10.1371/journal.pone.0351518\">10.1371/journal.pone.0351518</a>."},"acknowledgement":"I  am profoundly grateful to my parents, María Cristina Castillo Sandoval and Víctor Ángel García Aguillón, whose invaluable support made this research possible. Their endurance and dedication during the fieldwork were essential for the successful collection of the colony samples. Furthermore, our endless discussions regarding the natural history and behaviour of these ecosystem engineers deeply shaped the conceptualization of this study; this manuscript is a testament to their lifelong support of my academic journey. I am also sincerely grateful to my sister, Francy Alejandra García Castillo, for generously providing measurement equipment essential for our field data collection. I sincerely thank Alejandro Mejía for his invaluable local knowledge and field assistance in locating Atta colonies in Grima Baja and for providing information that guided us to the sampling area in Choro Bajo. I also thank Rosina Soler for her expert professional advice in curating the environmental variable matrix during the fieldwork planning phase, as well as for her insightful feedback during the elaboration of this manuscript.","publication_identifier":{"eissn":["1932-6203"]},"scopus_import":"1","issue":"10","publication":"Plos One","language":[{"iso":"eng"}],"OA_type":"gold","OA_place":"publisher","intvolume":"        21","publication_status":"published","quality_controlled":"1","pmid":1,"year":"2026","tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"ddc":["570"],"das_tickbox":"0","fulldoi":"https://doi.org/10.1371/journal.pone.0351518","article_processing_charge":"Yes","has_accepted_license":"1","date_published":"2026-10-01T00:00:00Z","file_date_updated":"2026-10-12T11:42:06Z","publisher":"Public Library of Science","department":[{"_id":"NiBa"}],"month":"10","external_id":{"pmid":["42821535"]},"oa":1,"corr_author":"1","day":"01","researchdata_availability":"no","doi":"10.1371/journal.pone.0351518","file":[{"access_level":"open_access","creator":"dernst","relation":"main_file","success":1,"checksum":"06ccc9f8806de407b21a168525e324de","date_created":"2026-10-12T11:42:06Z","date_updated":"2026-10-12T11:42:06Z","content_type":"application/pdf","file_name":"2026_PlosOne_GarciaCastillo.pdf","file_size":1166607,"file_id":"23109"}],"volume":21},{"language":[{"iso":"eng"}],"OA_type":"gold","OA_place":"publisher","publication_identifier":{"eissn":["2041-1723"]},"acknowledgement":"The authors are thankful to Armin Bergermann and Ronald Redmer for generously sharing AIMD trajectories and data, and for valuable discussions and feedback on the manuscript. The authors also acknowledge the research computing facilities provided by the high-performance computing (HPC) cluster at the Institute of Science and Technology Austria (ISTA), Berkeley Research Computing (BRC) at the University of California, Berkeley (UCB), and Lawrence Livermore National Laboratory (LLNL). B.C. was supported by the Laboratory Directed Research and Development (LDRD) Program at Lawrence Berkeley National Laboratory (LBNL) under project ID 110990-001. Part of this work was performed under the auspices of the U.S. Department of Energy by LLNL under Contract DE-AC52-07NA27344. S.H. was supported by the LDRD Program at LLNL under project tracking code 23-SI-006.","publication":"Nature Communications","scopus_import":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-10-12T11:00:16Z","supplementarymaterial":"yes","DOAJ_listed":"1","citation":{"apa":"Wang, X., Hamel, S., &#38; Cheng, B. (2026). Hydrogen-helium immiscibility boundary in gas-giant planetary interiors from machine-learning molecular dynamics. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-026-77117-8\">https://doi.org/10.1038/s41467-026-77117-8</a>","chicago":"Wang, Xiaoyu, Sebastien Hamel, and Bingqing Cheng. “Hydrogen-Helium Immiscibility Boundary in Gas-Giant Planetary Interiors from Machine-Learning Molecular Dynamics.” <i>Nature Communications</i>. Springer Nature, 2026. <a href=\"https://doi.org/10.1038/s41467-026-77117-8\">https://doi.org/10.1038/s41467-026-77117-8</a>.","ieee":"X. Wang, S. Hamel, and B. Cheng, “Hydrogen-helium immiscibility boundary in gas-giant planetary interiors from machine-learning molecular dynamics,” <i>Nature Communications</i>, vol. 17. Springer Nature, 2026.","short":"X. Wang, S. Hamel, B. Cheng, Nature Communications 17 (2026).","ista":"Wang X, Hamel S, Cheng B. 2026. Hydrogen-helium immiscibility boundary in gas-giant planetary interiors from machine-learning molecular dynamics. Nature Communications. 17, 10382.","mla":"Wang, Xiaoyu, et al. “Hydrogen-Helium Immiscibility Boundary in Gas-Giant Planetary Interiors from Machine-Learning Molecular Dynamics.” <i>Nature Communications</i>, vol. 17, 10382, Springer Nature, 2026, doi:<a href=\"https://doi.org/10.1038/s41467-026-77117-8\">10.1038/s41467-026-77117-8</a>.","ama":"Wang X, Hamel S, Cheng B. Hydrogen-helium immiscibility boundary in gas-giant planetary interiors from machine-learning molecular dynamics. <i>Nature Communications</i>. 2026;17. doi:<a href=\"https://doi.org/10.1038/s41467-026-77117-8\">10.1038/s41467-026-77117-8</a>"},"article_type":"original","type":"journal_article","oa_version":"Published Version","abstract":[{"text":"The location of the hydrogen-helium (H/He) immiscibility boundary controls whether and where helium rain occurs in giant planets, yet it remains uncertain because high-pressure experiments are challenging and ab initio simulations are limited in system size and simulation time. We map this boundary by computing composition-dependent chemical potentials from large-scale molecular dynamics driven by machine learning potentials trained on three density functional approximations (PBE, vdW-DF, and the hybrid HSE). Across the pressure range of 100-1000 GPa, the demixing temperatures are typically  ~ 2000 K lower than previous ab initio simulations using small system sizes, and this discrepancy is larger than the estimated error from the chosen density functionals, machine learning potentials, neglect of nuclear quantum effects, and statistical uncertainties. Fitting the H/He mixing free energy to a Redlich-Kister regular solution model rationalizes the thermodynamic driving force for phase separation, and provides a predictive representation of the boundary. Comparing with current planetary interior profiles indicates that helium rain is plausible in Saturn but unlikely in the warmer interior of Jupiter. Our results narrow the uncertainty in the H/He immiscibility boundary and provide inputs for planetary models that couple demixing, heat transport, and composition gradients in gas giants.","lang":"eng"}],"_id":"23089","title":"Hydrogen-helium immiscibility boundary in gas-giant planetary interiors from machine-learning molecular dynamics","author":[{"last_name":"Wang","first_name":"Xiaoyu","id":"8dff9c62-32b0-11ee-9fa8-fc73025e10f3","full_name":"Wang, Xiaoyu"},{"full_name":"Hamel, Sebastien","first_name":"Sebastien","last_name":"Hamel"},{"last_name":"Cheng","first_name":"Bingqing","id":"cbe3cda4-d82c-11eb-8dc7-8ff94289fcc9","full_name":"Cheng, Bingqing","orcid":"0000-0002-3584-9632"}],"date_created":"2026-10-11T22:02:04Z","status":"public","volume":17,"file":[{"file_id":"23107","date_updated":"2026-10-12T10:57:42Z","content_type":"application/pdf","file_name":"2026_NatureComm_Wang.pdf","file_size":1559219,"success":1,"date_created":"2026-10-12T10:57:42Z","checksum":"f39b50a550623a65aea2405b527e068c","access_level":"open_access","relation":"main_file","creator":"dernst"}],"doi":"10.1038/s41467-026-77117-8","researchdata_availability":"yes","article_number":"10382","external_id":{"pmid":["42816492"]},"month":"09","department":[{"_id":"GradSch"},{"_id":"BiCh"}],"publisher":"Springer Nature","day":"01","dataavailabilitystatement":"The training data, fitted MLPs, MLP molecular dynamics results, and source data underlying all figures and tables in the main text and Supplementary Information have been deposited in the Zenodo repository: https://doi.org/10.5281/zenodo.21632034. The data-analysis and plotting scripts used to generate the figures and tables in the main text and Supplementary Information are available in the GitHub repository: https://github.com/ChengUCB/HighPressure_HHe.","corr_author":"1","oa":1,"fulldoi":"https://doi.org/10.1038/s41467-026-77117-8","das_tickbox":"1","acknowledged_ssus":[{"_id":"ScienComp"}],"file_date_updated":"2026-10-12T10:57:42Z","date_published":"2026-09-01T00:00:00Z","has_accepted_license":"1","article_processing_charge":"Yes","quality_controlled":"1","year":"2026","pmid":1,"publication_status":"published","intvolume":"        17","tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"ddc":["540"]},{"article_type":"original","type":"journal_article","oa_version":"Published Version","abstract":[{"lang":"eng","text":"Homologous recombination is ubiquitous across evolution, generating variation through genetic reshuffling. Although bacteria lack meiotic recombination, homologous recombination has been known to extensively shape their genomes. However, the mechanisms and ecological conditions sustaining frequent recombination in bacteria remain unclear. Using an Escherichia coli–P1 phage model system, we reveal how frequent recombination emerges from CRISPR-based herd immunity to a generalized transducing phage (DNA vector). Herd immunity maintains phage-susceptible donor bacteria, recipient immune bacteria, and transducing phage, which promotes chromosomal gene flow that exceeds spontaneous mutation by up to two orders of magnitude. Notably, recombination begins as bacterial cultures enter stationary phase, when canonical mutation supply through population growth and DNA replication is strongly reduced, and recombination can be reinitiated by brief fresh nutrient pulses. Genetic analysis showed that stationary-phase recombination requires recA, recB, and recG, connecting this process to a defined homologous recombination pathway, and suggests a plausible transcriptional regulatory link to transition to nutrient limitation. Bacterial herd immunity therefore has an unexpected evolutionary consequence: it can promote homologous recombination by turning phages into de facto pollinators. This mechanism can help explain how high rates of homologous recombination may be sustained across bacterial populations and suggests that bacterial immune systems can shape molecular evolution not only by blocking infection but also by regulating genetic exchange."}],"_id":"23090","title":"Herd immunity underlies homologous recombination in stationary phase bacteria","date_created":"2026-10-11T22:02:04Z","author":[{"last_name":"Payne","first_name":"Pavel","id":"35F78294-F248-11E8-B48F-1D18A9856A87","full_name":"Payne, Pavel","orcid":"0000-0002-2711-9453"},{"first_name":"Pavel","last_name":"Plevka","full_name":"Plevka, Pavel"},{"id":"2C6FA9CC-F248-11E8-B48F-1D18A9856A87","last_name":"Bollback","first_name":"Jonathan P","orcid":"0000-0002-4624-4612","full_name":"Bollback, Jonathan P"},{"id":"47F8433E-F248-11E8-B48F-1D18A9856A87","first_name":"Calin C","last_name":"Guet","full_name":"Guet, Calin C","orcid":"0000-0001-6220-2052"}],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","supplementarymaterial":"yes","date_updated":"2026-10-12T10:51:54Z","license":"https://creativecommons.org/licenses/by-nc/4.0/","DOAJ_listed":"1","citation":{"short":"P. Payne, P. Plevka, J.P. Bollback, C.C. Guet, Molecular Biology and Evolution 43 (2026).","ieee":"P. Payne, P. Plevka, J. P. Bollback, and C. C. Guet, “Herd immunity underlies homologous recombination in stationary phase bacteria,” <i>Molecular Biology and Evolution</i>, vol. 43, no. 10. Oxford University Press, 2026.","ista":"Payne P, Plevka P, Bollback JP, Guet CC. 2026. Herd immunity underlies homologous recombination in stationary phase bacteria. Molecular Biology and Evolution. 43(10), msag238.","ama":"Payne P, Plevka P, Bollback JP, Guet CC. Herd immunity underlies homologous recombination in stationary phase bacteria. <i>Molecular Biology and Evolution</i>. 2026;43(10). doi:<a href=\"https://doi.org/10.1093/molbev/msag238\">10.1093/molbev/msag238</a>","mla":"Payne, Pavel, et al. “Herd Immunity Underlies Homologous Recombination in Stationary Phase Bacteria.” <i>Molecular Biology and Evolution</i>, vol. 43, no. 10, msag238, Oxford University Press, 2026, doi:<a href=\"https://doi.org/10.1093/molbev/msag238\">10.1093/molbev/msag238</a>.","apa":"Payne, P., Plevka, P., Bollback, J. P., &#38; Guet, C. C. (2026). Herd immunity underlies homologous recombination in stationary phase bacteria. <i>Molecular Biology and Evolution</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/molbev/msag238\">https://doi.org/10.1093/molbev/msag238</a>","chicago":"Payne, Pavel, Pavel Plevka, Jonathan P Bollback, and Calin C Guet. “Herd Immunity Underlies Homologous Recombination in Stationary Phase Bacteria.” <i>Molecular Biology and Evolution</i>. Oxford University Press, 2026. <a href=\"https://doi.org/10.1093/molbev/msag238\">https://doi.org/10.1093/molbev/msag238</a>."},"publication_identifier":{"issn":["0737-4038"],"eissn":["1537-1719"]},"acknowledgement":"We thank Stuart Baird, Nick Barton, Max Joesch, Meriem El Karoui, Mato Lagator, Ivana Mašlaňová, Stepan Ovchinnikov, Roman Pantůček, Maroš Pleška, Jitka Polechová, and Bryan Wu for their feedback on the manuscript. We are grateful to the Redlinger Hut for hosting many discussions about the project away from the daily buzz. We acknowledge the core facility CELLIM supported by the Czech-BioImaging large RI project (LM2023050 funded by MEYS CR) for their support. This work was supported by H2020 European Research Council EVOLHGT No. 648440 to JPB, European Commission Programme EXCELES project LX22NPO5103 “National Institute of Virology and Bacteriology” to PPl, and a bilateral Czech-Austrian mobility grant 8J3AT003 funded by MEYS CR and OeAD AT to PPa and CCG.","publication":"Molecular Biology and Evolution","issue":"10","scopus_import":"1","language":[{"iso":"eng"}],"OA_type":"gold","OA_place":"publisher","year":"2026","quality_controlled":"1","pmid":1,"publication_status":"epub_ahead","intvolume":"        43","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by-nc/4.0/legalcode","short":"CC BY-NC (4.0)","name":"Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)","image":"/images/cc_by_nc.png"},"ddc":["570"],"fulldoi":"https://doi.org/10.1093/molbev/msag238","das_tickbox":"1","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1093/molbev/msag238"}],"date_published":"2026-10-03T00:00:00Z","has_accepted_license":"1","keyword":["homologous recombination","defense systems","CRISPR-Cas","herd immunity","stationary phase","bacterial evolution"],"article_processing_charge":"Yes","external_id":{"pmid":["42827080"]},"month":"10","department":[{"_id":"CaGu"}],"publisher":"Oxford University Press","dataavailabilitystatement":"The data underlying this article are available in the article and in its online material.","day":"03","oa":1,"corr_author":"1","volume":43,"doi":"10.1093/molbev/msag238","researchdata_availability":"no","article_number":"msag238"},{"tmp":{"image":"/images/cc_by_nc_nd.png","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","short":"CC BY-NC-ND (4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode"},"ddc":["570","610"],"quality_controlled":"1","pmid":1,"year":"2026","publication_status":"published","intvolume":"         5","file_date_updated":"2026-10-12T11:33:01Z","date_published":"2026-09-30T00:00:00Z","has_accepted_license":"1","article_processing_charge":"Yes","fulldoi":"https://doi.org/10.1038/s44172-026-00771-9","das_tickbox":"0","day":"30","oa":1,"external_id":{"pmid":["42816513"]},"department":[{"_id":"NanoFab"}],"month":"09","publisher":"Springer Nature","article_number":"167","volume":5,"file":[{"file_id":"23108","file_size":9201511,"content_type":"application/pdf","date_updated":"2026-10-12T11:33:01Z","file_name":"2026_CommunicationsEngineering_Padovani.pdf","checksum":"770d3ef015bc3a8a81017f07a3225ab6","date_created":"2026-10-12T11:33:01Z","success":1,"creator":"dernst","relation":"main_file","access_level":"open_access"}],"doi":"10.1038/s44172-026-00771-9","researchdata_availability":"no","_id":"23088","title":"Hematologic complications and design challenges in cardiovascular devices","author":[{"full_name":"Padovani, Damiano","last_name":"Padovani","first_name":"Damiano"},{"full_name":"Afsharimani, Nasima S","id":"fe7df522-678a-11eb-9fb9-a37ecf42528e","last_name":"Afsharimani","first_name":"Nasima S"},{"first_name":"Andrea","last_name":"Cioncolini","full_name":"Cioncolini, Andrea"},{"full_name":"Ding, Yu","first_name":"Yu","last_name":"Ding"}],"status":"public","date_created":"2026-10-11T22:02:04Z","article_type":"original","type":"journal_article","oa_version":"Published Version","abstract":[{"text":"In this review, we provide an engineering assessment of prevalent blood-wetted cardiovascular devices, their hematologic complications, and their interconnections to identify key areas for future research. In fact, the incidence of cardiovascular diseases has promoted the development of various devices to treat these conditions, including mechanical circulatory supports (mechanical pumps that assist or replace failing hearts), artificial valves to replace faulty heart valves, stents to relieve obstructions in blood vessels, vascular grafts to repair/reconstruct damaged vessels, patches to reinforce or reconstruct cardiovascular tissues, and other implants. The hemocompatibility of these cardiovascular devices, namely their ability to interact with blood flow without causing adverse reactions, remains unsatisfactory, and recurrent complications include thrombosis, hemolysis, and bleeding. Therefore, the discussion provided herein will support readers approaching cardiovascular technologies in building a solid foundation and provide everyone with an up-to-date overview of ongoing research in this multidisciplinary field.","lang":"eng"}],"license":"https://creativecommons.org/licenses/by-nc-nd/4.0/","DOAJ_listed":"1","citation":{"mla":"Padovani, Damiano, et al. “Hematologic Complications and Design Challenges in Cardiovascular Devices.” <i>Communications Engineering</i>, vol. 5, 167, Springer Nature, 2026, doi:<a href=\"https://doi.org/10.1038/s44172-026-00771-9\">10.1038/s44172-026-00771-9</a>.","ama":"Padovani D, Afsharimani NS, Cioncolini A, Ding Y. Hematologic complications and design challenges in cardiovascular devices. <i>Communications Engineering</i>. 2026;5. doi:<a href=\"https://doi.org/10.1038/s44172-026-00771-9\">10.1038/s44172-026-00771-9</a>","ista":"Padovani D, Afsharimani NS, Cioncolini A, Ding Y. 2026. Hematologic complications and design challenges in cardiovascular devices. Communications Engineering. 5, 167.","ieee":"D. Padovani, N. S. Afsharimani, A. Cioncolini, and Y. Ding, “Hematologic complications and design challenges in cardiovascular devices,” <i>Communications Engineering</i>, vol. 5. Springer Nature, 2026.","short":"D. Padovani, N.S. Afsharimani, A. Cioncolini, Y. Ding, Communications Engineering 5 (2026).","chicago":"Padovani, Damiano, Nasima S Afsharimani, Andrea Cioncolini, and Yu Ding. “Hematologic Complications and Design Challenges in Cardiovascular Devices.” <i>Communications Engineering</i>. Springer Nature, 2026. <a href=\"https://doi.org/10.1038/s44172-026-00771-9\">https://doi.org/10.1038/s44172-026-00771-9</a>.","apa":"Padovani, D., Afsharimani, N. S., Cioncolini, A., &#38; Ding, Y. (2026). Hematologic complications and design challenges in cardiovascular devices. <i>Communications Engineering</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s44172-026-00771-9\">https://doi.org/10.1038/s44172-026-00771-9</a>"},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-10-12T11:34:48Z","supplementarymaterial":"yes","publication":"Communications Engineering","scopus_import":"1","publication_identifier":{"eissn":["2731-3395"]},"OA_place":"publisher","OA_type":"gold","language":[{"iso":"eng"}]},{"publication_identifier":{"issn":["2663-337X"]},"acknowledgement":"This project was partially supported by the 2019 Lopez-Loreta Prize and\r\nthe ERC INF2 project (project number 101161364). Furthermore, the candidate acknowledges\r\nthe support from the Scientific Service Units of the Institute of Science and Technology Austria\r\nthrough resources provided by Scientific Computing.","OA_place":"publisher","language":[{"iso":"eng"}],"_id":"23072","title":"Compression and inference in high dimensions: An approximate message passing perspective","author":[{"full_name":"Kögler, Kevin","id":"94ec913c-dc85-11ea-9058-e5051ab2428b","last_name":"Kögler","first_name":"Kevin"}],"status":"public","date_created":"2026-10-07T11:20:26Z","oa_version":"Published Version","type":"dissertation","supervisor":[{"id":"27EB676C-8706-11E9-9510-7717E6697425","first_name":"Marco","last_name":"Mondelli","full_name":"Mondelli, Marco","orcid":"0000-0002-3242-7020"}],"abstract":[{"lang":"eng","text":"Inferring signal from large quantities of data is one of the most important problems in today’s\r\nworld, with neural networks emerging as the most powerful solution. While there have been\r\nmassive breakthroughs in the ML space, there are two main drawbacks. The first is that\r\nmost of these models are “black boxes”, with very little understanding of why they work,\r\nwhich makes it hard to find the correct architecture for a given problem. The architecture is\r\ncrucial, as the widely used training algorithms are “local” and thus rely on the loss landscape\r\nbeing benign enough to find a global optimum. This brings us to the second problem: while\r\nthere is a lot of evidence that this can be overcome with large enough data, this is less clear\r\nfor datasets which are noisy, do not have enough samples, or have a non-standard structure.\r\nHistorically, on a smaller scale, the alternative has been simple (Bayesian) statistical methods,\r\nwhich also have the advantage of being interpretable and adaptable. However, many of the\r\nclassical results cannot be easily extended to the high-dimensional regime in which modern\r\ndata lives.\r\nIn this work we want to consider two different settings relating to the above. The first is\r\napproximate message passing (AMP), an iterative algorithm for high-dimensional (generalized)\r\nlinear models that easily lends itself to Bayesian setups, and which in many cases is provably\r\nBayes-optimal. The second is an autoencoder with a shallow encoder, for which we can\r\nanalyze the weights along the training trajectory of gradient descent. Surprisingly, we will find\r\na connection between the two, as we recover certain structures of AMP.\r\nWe will first introduce the AMP framework by studying an extension that can be applied\r\nto a wider variety of data: rotationally invariant generalized approximate message passing\r\n(RI-GAMP). This shows that one can extend the AMP framework to a much wider class of\r\nalgorithms, relevant to more practical settings. The results are then also confirmed on real\r\ndata that go beyond the theoretical setting.\r\nWe then move to the setup of an autoencoder with a shallow encoder and a Bayesian prior in\r\nthe high-dimensional regime, in which the input and compression dimensions are large and\r\nproportional; this is also a first step towards opening one of the black boxes above, as we\r\ncan say precisely when and why the network works. While autoencoders are widely used in\r\nmodern ML architectures, most fundamental research in this direction has focused on extreme\r\nasymptotic regimes, where the autoencoder is either severely over- or under-parameterized,\r\nand which do not extend to the proportional high-dimensional regime. We show that for\r\nGaussian priors the network finds the global optimum, and these theoretical findings extrapolate\r\nstrikingly well to real image data. Next we extend this analysis to more structured priors and\r\na deeper decoder. For sparse Gaussian inputs in the training regime studied here, the shallow\r\ndecoder does not exploit sparsity and yields the same dynamics as in the Gaussian setting.\r\nWe then show how a deeper decoder can break this behavior, and interestingly, if we treat the\r\nproblem as an AMP problem, the network eventually learns the same decoding as AMP. This\r\ntoo extrapolates to real image data.\r\nLastly, we will show that the AMP setup has real practical use, by using a practical variant,\r\ngenetic vector approximate message passing (gVAMP), for predicting plasma protein levels\r\nfrom genetic information using the UKB GWAS data. This is a perfect example of the problems\r\nin the high-dimensional regime: approximately 8.4 million dimensions and 40,000 samples,\r\nwhere the high noise, low sample count, and large size make it hard for ML methods to work.\r\nTo get the optimal prediction accuracy we consider a two-step inference. We first consider a\r\npre-processed version of the data, of about 880,000 dimensions, on which we run the gVAMP\r\nalgorithm; this allows us to find predictive regions, taking into account joint effects between\r\ndifferent regions, and for most proteins we end up selecting only about 0.1% of the dimensions.\r\nWe then consider the analogue of this small subset, on which we can now run a standard tree\r\nalgorithm (XGB) that no longer suffers from the aforementioned problems. This pipeline yields\r\nbetter prediction accuracy than recent nonlinear deep learning approaches applied to this data,\r\nas we are able to handle the pre-processing in a principled Bayesian way."}],"related_material":{"record":[{"id":"14459","relation":"part_of_dissertation","status":"public"},{"relation":"part_of_dissertation","id":"12540","status":"public"},{"status":"public","relation":"part_of_dissertation","id":"17469"}]},"project":[{"name":"Prix Lopez-Loretta 2019 - Marco Mondelli","_id":"059876FA-7A3F-11EA-A408-12923DDC885E"}],"citation":{"ama":"Kögler K. Compression and inference in high dimensions: An approximate message passing perspective. 2026. doi:<a href=\"https://doi.org/10.15479/AT-ISTA-23072\">10.15479/AT-ISTA-23072</a>","mla":"Kögler, Kevin. <i>Compression and Inference in High Dimensions: An Approximate Message Passing Perspective</i>. Institute of Science and Technology Austria, 2026, doi:<a href=\"https://doi.org/10.15479/AT-ISTA-23072\">10.15479/AT-ISTA-23072</a>.","ieee":"K. Kögler, “Compression and inference in high dimensions: An approximate message passing perspective,” Institute of Science and Technology Austria, 2026.","short":"K. Kögler, Compression and Inference in High Dimensions: An Approximate Message Passing Perspective, Institute of Science and Technology Austria, 2026.","ista":"Kögler K. 2026. Compression and inference in high dimensions: An approximate message passing perspective. Institute of Science and Technology Austria.","chicago":"Kögler, Kevin. “Compression and Inference in High Dimensions: An Approximate Message Passing Perspective.” Institute of Science and Technology Austria, 2026. <a href=\"https://doi.org/10.15479/AT-ISTA-23072\">https://doi.org/10.15479/AT-ISTA-23072</a>.","apa":"Kögler, K. (2026). <i>Compression and inference in high dimensions: An approximate message passing perspective</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/AT-ISTA-23072\">https://doi.org/10.15479/AT-ISTA-23072</a>"},"page":"222","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","date_updated":"2026-10-12T13:04:49Z","day":"08","corr_author":"1","oa":1,"doi_confirm":"1","department":[{"_id":"MaMo"},{"_id":"GradSch"}],"month":"10","publisher":"Institute of Science and Technology Austria","file":[{"date_created":"2026-10-09T11:20:09Z","checksum":"5fb2ff02dc9d8c659b2fb5e0802b06ff","creator":"kkoegler","relation":"source_file","access_level":"closed","file_id":"23084","file_size":8504109,"date_updated":"2026-10-09T12:22:55Z","content_type":"application/zip","file_name":"2026_Koegler_Kevin_Thesis.zip"},{"access_level":"open_access","creator":"kkoegler","relation":"main_file","success":1,"checksum":"a6df3b04c97628a1703f63356fb56f96","date_created":"2026-10-09T13:25:49Z","file_name":"2026_Koegler_Kevin_Thesis.pdf","content_type":"application/pdf","date_updated":"2026-10-09T13:25:49Z","file_size":6692605,"file_id":"23085"}],"doi":"10.15479/AT-ISTA-23072","ddc":["519"],"year":"2026","publication_status":"published","alternative_title":["ISTA Thesis"],"date_published":"2026-10-08T00:00:00Z","file_date_updated":"2026-10-09T13:25:49Z","has_accepted_license":"1","article_processing_charge":"No","fulldoi":"https://doi.org/10.15479/AT-ISTA-23072","degree_awarded":"PhD","acknowledged_ssus":[{"_id":"ScienComp"}]},{"das_tickbox":"1","fulldoi":"https://doi.org/10.1038/s41929-026-01616-6","acknowledged_ssus":[{"_id":"LifeSc"},{"_id":"MassSpec"},{"_id":"NMR"},{"_id":"M-Shop"}],"main_file_link":[{"url":"https://doi.org/10.1038/s41929-026-01616-6","open_access":"1"}],"date_published":"2026-09-29T00:00:00Z","article_processing_charge":"Yes (via OA deal)","publication_status":"epub_ahead","quality_controlled":"1","year":"2026","researchdata_availability":"upon request","doi":"10.1038/s41929-026-01616-6","publisher":"Springer Nature","month":"09","department":[{"_id":"BaPi"},{"_id":"GradSch"},{"_id":"RaKl"}],"day":"29","dataavailabilitystatement":"All data are available from the authors upon request.","oa":1,"corr_author":"1","supplementarymaterial":"yes","date_updated":"2026-10-14T06:32:42Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","PlanS_conform":"1","citation":{"chicago":"Bena, Aleksander, Trisha Banik, Christos Giannoudis, Florian Ortis, Daniel Bím, Haralds Baunis, Gayathri Palissery, and Bartholomäus Pieber. “Ligand Design Broadens NiI-Catalysed C(Sp2)–Heteroatom Couplings of Aryl Bromides at Low Catalyst Loadings.” <i>Nature Catalysis</i>. Springer Nature, 2026. <a href=\"https://doi.org/10.1038/s41929-026-01616-6\">https://doi.org/10.1038/s41929-026-01616-6</a>.","apa":"Bena, A., Banik, T., Giannoudis, C., Ortis, F., Bím, D., Baunis, H., … Pieber, B. (2026). Ligand design broadens NiI-catalysed C(sp2)–heteroatom couplings of aryl bromides at low catalyst loadings. <i>Nature Catalysis</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41929-026-01616-6\">https://doi.org/10.1038/s41929-026-01616-6</a>","ama":"Bena A, Banik T, Giannoudis C, et al. Ligand design broadens NiI-catalysed C(sp2)–heteroatom couplings of aryl bromides at low catalyst loadings. <i>Nature Catalysis</i>. 2026. doi:<a href=\"https://doi.org/10.1038/s41929-026-01616-6\">10.1038/s41929-026-01616-6</a>","mla":"Bena, Aleksander, et al. “Ligand Design Broadens NiI-Catalysed C(Sp2)–Heteroatom Couplings of Aryl Bromides at Low Catalyst Loadings.” <i>Nature Catalysis</i>, Springer Nature, 2026, doi:<a href=\"https://doi.org/10.1038/s41929-026-01616-6\">10.1038/s41929-026-01616-6</a>.","ieee":"A. Bena <i>et al.</i>, “Ligand design broadens NiI-catalysed C(sp2)–heteroatom couplings of aryl bromides at low catalyst loadings,” <i>Nature Catalysis</i>. Springer Nature, 2026.","short":"A. Bena, T. Banik, C. Giannoudis, F. Ortis, D. Bím, H. Baunis, G. Palissery, B. Pieber, Nature Catalysis (2026).","ista":"Bena A, Banik T, Giannoudis C, Ortis F, Bím D, Baunis H, Palissery G, Pieber B. 2026. Ligand design broadens NiI-catalysed C(sp2)–heteroatom couplings of aryl bromides at low catalyst loadings. Nature Catalysis."},"project":[{"grant_number":"PAT 1250924","name":"Photoactive ligands for transformative nickel catalysis","_id":"8f1d607d-16d5-11f0-9cad-ab453295ba5e"},{"_id":"fc2ed2f7-9c52-11eb-aca3-c01059dda49c","name":"IST-BRIDGE: International postdoctoral program","call_identifier":"H2020","grant_number":"101034413"}],"oa_version":"Published Version","type":"journal_article","article_type":"original","abstract":[{"lang":"eng","text":"The formation of C(sp2)–heteroatom bonds through cross-coupling catalysis is central to the synthesis of pharmaceuticals, agrochemicals and materials. Whereas Pd0/PdII catalysis requires substrate-specific ligand optimization to balance the competing demands of oxidative addition and reductive elimination, NiI/NiIII catalysis offers a complementary strategy because the bond-forming step is intrinsically favourable. However, contemporary NiI/NiIII methodologies suffer from insufficient oxidative addition reactivity, restricting the aryl halide scope and requiring high catalyst loadings. Here we show that mechanistically guided ligand design overcomes these limitations. Together with a non-nucleophilic base additive that promotes direct visible-light generation of NiI from a bench-stable NiII precatalyst, this ligand design enables the coupling of electron-rich aryl bromides with N-, O-, S- and P-based nucleophiles at nickel loadings as low as 100 ppm. The method is compatible with sterically encumbered nucleophiles and enables gram-scale synthesis and late-stage functionalization of complex molecules."}],"title":"Ligand design broadens NiI-catalysed C(sp2)–heteroatom couplings of aryl bromides at low catalyst loadings","_id":"23094","author":[{"full_name":"Bena, Aleksander","id":"4197c39e-e8ec-11ed-86cb-afed934cd664","last_name":"Bena","first_name":"Aleksander"},{"first_name":"Trisha","last_name":"Banik","id":"506b8e06-c59a-11ee-a1af-ae470719e7d3","full_name":"Banik, Trisha"},{"full_name":"Giannoudis, Christos","first_name":"Christos","last_name":"Giannoudis","id":"1bd506c6-e8ec-11ed-86cb-d495f63f2dcd"},{"first_name":"Florian","last_name":"Ortis","id":"e34c9177-3208-11ee-ac71-a6a15cf2ef29","orcid":"0000-0002-0458-5187","full_name":"Ortis, Florian"},{"last_name":"Bím","first_name":"Daniel","full_name":"Bím, Daniel"},{"id":"2eea55ec-e8ec-11ed-86cb-d9c76787acfe","first_name":"Haralds","last_name":"Baunis","full_name":"Baunis, Haralds"},{"full_name":"Palissery, Gayathri","id":"b02c9d47-50c9-11ef-b52e-b2180bf00ccd","last_name":"Palissery","first_name":"Gayathri"},{"id":"93e5e5b2-0da6-11ed-8a41-af589a024726","last_name":"Pieber","first_name":"Bartholomäus","orcid":"0000-0001-8689-388X","full_name":"Pieber, Bartholomäus"}],"status":"public","date_created":"2026-10-11T22:02:06Z","language":[{"iso":"eng"}],"OA_type":"hybrid","OA_place":"publisher","ec_funded":1,"acknowledgement":"We acknowledge ISTA for generous financial support. This research was supported by the Scientific Service Units (SSU) of ISTA through resources provided by the Lab Support Facility, Mass Spec Facility, NMR facility and the Miba Machine Shop. We specifically thank A. Paraskevopoulou for high-resolution mass spectrometry measurements. B.P. acknowledges the Austrian Science Fund (PAT 1250924) and the ACS GCI Pharmaceutical Roundtable for funding. T.B. thanks the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 101034413. D.B. acknowledges funding from the Czech Science Foundation (25-17760M). Open access funding provided by Institute of Science and Technology (IST Austria).","publication_identifier":{"eissn":["2520-1158"]},"publication":"Nature Catalysis","scopus_import":"1"},{"author":[{"last_name":"Shengtao","first_name":"Jiang","full_name":"Shengtao, Jiang"},{"first_name":"Jean-Yves Marc","last_name":"Desaules","id":"6c292945-a610-11ed-9eec-c3be1ad62a80","orcid":"0000-0002-3749-6375","full_name":"Desaules, Jean-Yves Marc"},{"orcid":"0000-0003-0038-7068","full_name":"Ljubotina, Marko","first_name":"Marko","last_name":"Ljubotina","id":"F75EE9BE-5C90-11EA-905D-16643DDC885E"},{"last_name":"Scaffidi","first_name":"Thomas","full_name":"Scaffidi, Thomas"}],"date_created":"2026-10-11T22:02:06Z","status":"public","title":"Finite-temperature crossover from coherent magnons to energy superdiffusion in the PXP model","_id":"23095","abstract":[{"lang":"eng","text":"The PXP chain was recently shown to exhibit superdiffusive energy transport with Kardar-Parisi-Zhang-like\r\nscaling, z ≈ 3/2, joining a growing number of spin chains with this exponent. An understanding of how this\r\nanomalous hydrodynamics emerges from microscopics is, however, still lacking. In this work, we show that\r\nfinite-temperature energy transport in this model provides a window into the emergence of superdiffusion. At\r\nfinite temperature, the energy autocorrelation function exhibits a crossover from short-time coherent dynamics to\r\nlong-time hydrodynamics. The short-time behavior is dominated by a single magnon band and can be understood\r\nanalytically. In momentum space, this regime is characterized by spectral weight near q = π. The damping time\r\nτ , which separates the short-time magnon-dominated behavior from the late-time hydrodynamics, grows rapidly\r\nupon cooling, consistent with an activated form τ (β) ∼ βe\u0005β with a gap scale set by the magnon band. At longer\r\ntimes, the spectral weight transfers to q = 0 and the running decay exponent drifts toward the superdiffusive\r\nvalue z = 3/2. Finite-temperature energy transport therefore provides a bridge between microscopic magnon\r\nphysics and late-time superdiffusion in the PXP model."}],"type":"journal_article","oa_version":"Preprint","article_type":"original","citation":{"mla":"Shengtao, Jiang, et al. “Finite-Temperature Crossover from Coherent Magnons to Energy Superdiffusion in the PXP Model.” <i>Physical Review B</i>, vol. 114, no. 8, 084306, American Physical Society, 2026, doi:<a href=\"https://doi.org/10.1103/mx9k-1mc6\">10.1103/mx9k-1mc6</a>.","ama":"Shengtao J, Desaules J-YM, Ljubotina M, Scaffidi T. Finite-temperature crossover from coherent magnons to energy superdiffusion in the PXP model. <i>Physical Review B</i>. 2026;114(8). doi:<a href=\"https://doi.org/10.1103/mx9k-1mc6\">10.1103/mx9k-1mc6</a>","ieee":"J. Shengtao, J.-Y. M. Desaules, M. Ljubotina, and T. Scaffidi, “Finite-temperature crossover from coherent magnons to energy superdiffusion in the PXP model,” <i>Physical Review B</i>, vol. 114, no. 8. American Physical Society, 2026.","short":"J. Shengtao, J.-Y.M. Desaules, M. Ljubotina, T. Scaffidi, Physical Review B 114 (2026).","ista":"Shengtao J, Desaules J-YM, Ljubotina M, Scaffidi T. 2026. Finite-temperature crossover from coherent magnons to energy superdiffusion in the PXP model. Physical Review B. 114(8), 084306.","chicago":"Shengtao, Jiang, Jean-Yves Marc Desaules, Marko Ljubotina, and Thomas Scaffidi. “Finite-Temperature Crossover from Coherent Magnons to Energy Superdiffusion in the PXP Model.” <i>Physical Review B</i>. American Physical Society, 2026. <a href=\"https://doi.org/10.1103/mx9k-1mc6\">https://doi.org/10.1103/mx9k-1mc6</a>.","apa":"Shengtao, J., Desaules, J.-Y. M., Ljubotina, M., &#38; Scaffidi, T. (2026). Finite-temperature crossover from coherent magnons to energy superdiffusion in the PXP model. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/mx9k-1mc6\">https://doi.org/10.1103/mx9k-1mc6</a>"},"project":[{"_id":"fc2ed2f7-9c52-11eb-aca3-c01059dda49c","call_identifier":"H2020","name":"IST-BRIDGE: International postdoctoral program","grant_number":"101034413"}],"supplementarymaterial":"yes","date_updated":"2026-10-14T05:44:58Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","issue":"8","publication":"Physical Review B","ec_funded":1,"acknowledgement":"We thank M. Serbyn, S. White, and T. Iadecola for insightful discussions. Work by T.S. was supported by the U.S.\r\nDepartment of Energy, Office of Science, Office of Basic\r\nEnergy Sciences under Early Career Research Program Award\r\nNo. DE-SC0025568. T.S. gratefully acknowledges the Institute of Science and Technology Austria (ISTA) for hosting\r\nhim during the initial stages of this project. S.J. is supported by the U.S. Department of Energy, Office of Science,\r\nBasic Energy Sciences, Materials Sciences and Engineering\r\nDivision, under Contract No. DE-AC02-76SF00515. M.L.\r\nacknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s\r\nExcellence Strategy—EXC-2111—390814868. J.-Y.D. acknowledges funding from the European Union’s Horizon\r\n2020 Research and innovation program under the Marie\r\nSkłodowska-Curie Grant Agreement No. 101034413.","publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"OA_place":"repository","OA_type":"green","language":[{"iso":"eng"}],"intvolume":"       114","publication_status":"published","year":"2026","quality_controlled":"1","article_processing_charge":"No","date_published":"2026-08-21T00:00:00Z","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2605.19281"}],"arxiv":1,"das_tickbox":"1","fulldoi":"https://doi.org/10.1103/mx9k-1mc6","oa":1,"dataavailabilitystatement":"There are no publicly available research data or software\r\nsupporting this manuscript. Requests for further information\r\nor data should be sent to the authors.","day":"21","publisher":"American Physical Society","month":"08","department":[{"_id":"MaSe"}],"external_id":{"arxiv":["2605.19281"]},"article_number":"084306","doi":"10.1103/mx9k-1mc6","researchdata_availability":"upon request","volume":114},{"OA_type":"gold","OA_place":"publisher","language":[{"iso":"eng"}],"publication":"The Astrophysical Journal","scopus_import":"1","issue":"1","publication_identifier":{"issn":["0004-637X"],"eissn":["1538-4357"]},"acknowledgement":"IOP Science home\r\nAccessibility Help\r\n\r\nJournals\r\nBooks\r\nPublishing Support\r\nLogin\r\nThe Astrophysical Journal\r\nThe American Astronomical Society, find out more.\r\n\r\nThe following article isOpen access\r\nEIGER. VIII. First Stars Signatures in the Connection between O I Absorption and Galaxies in the Epoch of Reionization\r\nJack Higginson, Rongmon Bordoloi, Robert A. Simcoe, Jorryt Matthee, Daichi Kashino, Ruari Mackenzie, Ivan Kramarenko, Simon J. Lilly, Anna-Christina Eilers, Rohan P. NaiduShow full author list\r\n\r\nPublished 2026 February 24 • © 2026. The Author(s). Published by the American Astronomical Society.\r\nThe Astrophysical Journal, Volume 999, Number 1\r\nCitation Jack Higginson et al 2026 ApJ 999 49\r\nDOI 10.3847/1538-4357/ae3e81\r\n\r\nPDFOpens in a new tab.\r\nePub\r\nAuthors\r\nFigures\r\nTables\r\nReferences\r\nArticle data\r\nPDFOpens in a new tab.\r\nePub\r\nArticle metrics\r\n626 Total downloads\r\n\r\n22 total citations on Dimensions.\r\nShare this article\r\nArticle information\r\nAbstract\r\nWe investigate the association between galaxies and neutral O i absorption systems at z ∼ 6, which trace metal-enriched gas during the epoch of reionization. We identify 40 galaxies across six quasar fields, residing in 15 overdensities within 300 kpc of the background sight lines. Five O i absorption systems are associated with five of these overdensities, yielding a covering fraction of \r\n within 300 kpc. The absorption occurs beyond typical virial radii, indicating that the gas traces extended overdensity environments rather than individual galaxy halos, unlike the z ∼ 0 circumgalactic medium (CGM), which is largely bound to halos. These galaxy-associated absorbers account for ∼35% of all O i systems seen in blind quasar surveys, implying the remainder arise in lower-mass galaxies below our detection threshold or in dense neutral intergalactic medium pockets. The CGM around these galaxies contains  ≳  2 × 106 M⊙ of oxygen, comparable to the interstellar medium oxygen mass of the galaxies themselves, suggesting that the surrounding environment holds as much metal mass as the galaxies. All five galaxy-associated systems show significantly higher \r\n ratios than absorbers lacking galaxy associations. Furthermore, relative abundance ratios ([Si/O], [C/O]) reveal that four of the five exhibit enrichment patterns consistent with Population III nucleosynthesis at the outskirts of galaxy overdensities. These rare systems offer a unique window into the role of first-generation stars in shaping the early metal enrichment of galaxies and their environments.\r\n\r\nExport citation and abstract\r\nBibTeX\r\nRIS\r\n\r\nPrevious article in issue\r\nNext article in issue\r\nRelated links\r\n\r\nOriginal content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.\r\n\r\n1. Introduction\r\nThe first generations of stars formed shortly after the Epoch of Recombination within dark matter overdensities, producing the first significant quantities of metals and enriching the intergalactic medium (IGM) while reionizing hydrogen and helium (e.g., R. S. Klessen & S. C. O. Glover 2023). These metals and gas eventually coalesced into the first galaxies, which over cosmic time evolved into Milky Way–like systems today. Studying these young galaxies and their environments provides critical insight into galaxy formation and evolution, constraining models of stellar feedback, gas accretion, and chemical enrichment (C.-A. Faucher-Giguère & S. P. Oh 2023; C. Peroux & D. Nelson 2024).\r\n\r\nAt low redshift, decades of observations using deep ground-based spectroscopy and Hubble Space Telescope (HST) data of background quasars and foreground galaxies have built a rich understanding of the circumgalactic medium (CGM) and its interplay with galaxies (e.g., J. Tumlinson et al. 2017). The CGM plays a crucial role in gas recycling, star formation regulation, and quenching; understanding its structure and composition informs galaxy growth models (Y. Peng et al. 2015; E. Zinger et al. 2020).\r\n\r\nHigh-redshift studies, leveraging ground- and space-based near-infrared (NIR) spectroscopy of quasars, reveal that the early Universe was already chemically enriched by the epoch of reionization (e.g., T. J. Cooper et al. 2019; L. Christensen et al. 2023; R. L. Davies et al. 2023a). Among tracers of neutral and low-ionization gas, O i has emerged as a key probe: surveys report an increase in O i number density at z  ≳  5–6 (G. D. Becker et al. 2019; L. Christensen et al. 2023; A. M. Sebastian et al. 2024; A. Sodini et al. 2024), while higher-ionization species like C iv and Si iv decline, consistent with a softer and evolving UV background at the end of reionization (T. J. Cooper et al. 2019; V. D’Odorico et al. 2022; R. L. Davies et al. 2023a, 2023b).\r\n\r\nHistorically, connecting absorption systems with their host galaxies was challenging due to the difficulty of obtaining deep, high-redshift galaxy spectroscopy. This has changed with the advent of JWST, providing unprecedented views of early galaxies and their impact on surrounding gas through surveys such as EIGER (D. Kashino et al. 2023) and ASPIRE (F. Wang et al. 2023). First systematic studies of cool, low-ionization CGM traced by Mg ii around z ∼ 6 galaxies suggest that high-redshift CGM differs significantly from its low-redshift counterpart: these galaxies typically have low masses, and strong stellar feedback can eject metals far beyond the halo’s gravitational potential (R. Bordoloi et al. 2024). Such pioneering studies now allow systematic investigations of the CGM in the early Universe.\r\n\r\nThe UV background during reionization was inhomogeneous and rapidly evolving (e.g., S. R. Furlanetto & S. P. Oh 2005; B. D. Oppenheimer et al. 2009; K. Finlator et al. 2013; G. D. Becker et al. 2015; S. E. I. Bosman et al. 2022), initially dominated by Population III stars (K. Nakajima & R. Maiolino 2022; K. Nakajima et al. 2025), then by early star-forming galaxies (L. Jiang et al. 2022; J. Matthee et al. 2022), with active galactic nuclei (AGN) contributing significantly by z ∼ 5 (A. D’Aloisio et al. 2017; G. Kulkarni et al. 2019; C.-A. Faucher-Giguère 2020). Modeling indicates that pockets of Population III star formation may persist throughout the Epoch of Reionization (L. Tornatore et al. 2007; R. H. Mebane et al. 2018; J. L. Johnson & A. Aykutalp 2019; A. Venditti et al. 2023; O. Zier et al. 2025).\r\n\r\nThe large reservoir of neutral O i observed in quasar absorption lines at high redshift is typically self-shielded, providing robust estimates of chemical abundances. Studying the association of these absorbers with galaxies offers unique insight into the CGM of early galaxies, and into potential contributions from Population III stars to early chemical enrichment.\r\n\r\nIn this work, we study the cool, neutral CGM around galaxies at z ∼ 6, traced by O i absorption from the EIGER survey (D. Kashino et al. 2023). We focus on O i absorbers associated with [O iii]5008-emitting galaxies at 5.875 <z < 6.378 within 300 kpc of six background quasars. We quantify absorber incidence, column densities, and mass estimates, and analyze ionic abundances to probe chemical enrichment, including potential contributions from Population III stars.\r\n\r\nThis paper is organized as follows. Section 2 describes the observations; Section 3 details our methods for galaxy selection, redshift estimation, galaxy properties, defining galaxy overdensities, absorber measurements, and completeness; Section 4 presents the results, including the association of O i absorption with galaxies, the incidence of galaxy-associated O i absorbers, their chemical abundances, and physical interpretations; Section 5 summarizes our conclusions. Throughout, we adopt a ΛCDM cosmology with H0 = 67.66 km s−1 Mpc−1 (Planck Collaboration et al. 2020).\r\n\r\n2. Observations\r\nEIGER (Program ID 1243; PI: S. J. Lilly) is a large JWST Wide Field Slitless Spectroscopy (WFSS) program totaling 126.5 hr, conducting deep WFSS observations in six extragalactic fields, each centered on an ultraluminous quasar at z ≥ 6. These quasars have also been observed with deep optical and NIR medium- and high-resolution spectroscopy with Magellan/FIRE, Very Large Telescope/X-shooter, and Keck High Resolution Echelle Spectrometer (HIRES)/MOSFIRE, providing over 100 hr of complementary NIR spectroscopy across the six sight lines. We refer the reader to A.-C. Eilers et al. (2023) and A.-C. Ďurovčíková et al. (2025) for data reduction and details of the ground-based quasar spectroscopy. In addition, all fields are covered by deep JWST/NIRCam and HST imaging. A detailed description of the survey design, methodology, and spectroscopic and photometric observation details is provided in D. Kashino et al. (2023), J. Matthee et al. (2023), and R. Bordoloi et al. (2024). In this work, we make use of the complete EIGER survey of z ≥ 5.9 galaxies spanning all six extragalactic fields (D. Kashino et al. 2026).\r\n\r\nWe note that all six quasars were chosen with prior knowledge of metal absorption systems along their lines of sight, which could in principle bias any attempt to associate galaxies with those absorbers. In contrast, a galaxy-centric approach starts with quasar–galaxy pairs without prior knowledge of absorption and then builds statistics systematically (see e.g., R. Bordoloi et al. 2011; J. K. Werk et al. 2013; R. Bordoloi et al. 2014). However, once a blind, well-characterized galaxy survey is in place, the two approaches converge. This is conceptually similar to a program that combines quasar spectroscopy performed without prior absorber selection with a complete galaxy survey. This work employs deep blind galaxy searches in each of the EIGER fields, yielding an emission-line complete sample of spectroscopic galaxies (J. Matthee et al. 2022; R. Bordoloi et al. 2024) and a complete census of absorption lines along these sight lines (Section 3.5). By combining these two elements—a galaxy survey with quantified completeness and an absorption survey with well-defined sensitivity—we establish a robust framework for conducting a census of CGM absorption around galaxies. This combined approach has been successfully demonstrated at low redshifts (J. N. Burchett et al. 2019).\r\n\r\n3. Methods\r\nIn this section, we describe how galaxy redshifts and properties are measured and how absorption lines are identified and measured.\r\n\r\n3.1. Galaxy Redshifts\r\nSince our focus is on galaxies at z ∼ 6 near the quasar sight lines, we begin with the full EIGER catalog of [O iii] emitters (D. Kashino et al. 2026), which contains 948 galaxies detected via [O iii] emission within 5.33 ≤ z ≤ 6.97. From this catalog, we select galaxies that (1) lie at least 10,000 km s−1 in the foreground of each quasar , (2) are within a projected impact parameter of 300 pkpc, and (3) have O i λ1302 coverage in the quasar NIR spectra outside of the Gunn–Peterson trough. This yields a sample of 40 galaxies. Of these, 33 fall within the central of the EIGER spectroscopic footprint (R. Bordoloi et al. 2024), observed with both JWST/NIRCam reverse grism modules (A and B). Because the two modules disperse light in opposite directions, they provide independent moderate-resolution (R ∼ 1500) spectra of the same target, enabling us to assess redshift measurement uncertainties.\r\n\r\nFollowing the procedure in R. Bordoloi et al. (2024), we visually inspect each NIRCam 2D spectrum using the custom Python application programming interface (API) zgui(R. Bordoloi et al. 2025), extract 1D spectra from each module, and fit Gaussians to the emission line to determine redshifts. Redshifts from the two modules are consistent with a mean velocity offset of Δv = 9.3 km s−1 with a standard deviation of 24 km s−1 (Figure 1). We therefore adopt an average redshift uncertainty of ≈24 km s−1 for the [O iii] emitters, sufficient for associating metal absorption systems with their host galaxies. Hereafter, we focus on this sample of 40 galaxies.\r\n\r\nZoom InZoom OutReset image size\r\nFigure 1. Redshift uncertainty distribution of the [O iii] emitter EIGER galaxies. The histogram shows the difference in redshift between emission-line measurements from NIRCam Grism Module A and Module B spectra, expressed in km s−1. Individual redshifts were derived from Gaussian fits to the [O iii] and Hβ lines. The two modules yield consistent results with a mean offset and standard deviation of Δz = 0.0028 ± 0.0073 (Δv = 9.3 ± 24 km s−1).\r\n\r\nDownload figure:\r\n\r\nStandard image\r\nHigh-resolution image\r\n3.2. Galaxy Stellar Mass, Star formation Rate, Halo Mass\r\nTo estimate galaxy stellar masses and star formation rates (SFRs), we follow the procedure of J. Matthee et al. (2022). We first measure the [O iii] and Hβ emission-line fluxes of each galaxy, and combine these with JWST/NIRCam broadband photometry (F115W, F200W, and F356W) to perform spectral energy distribution fitting at the galaxy redshift using the Prospector code (B. D. Johnson et al. 2021). We assume a G. Chabrier (2003) initial mass function (IMF), adopt MIST isochrones (J. Choi et al. 2016; A. Dotter 2016), a nonparametric star formation history model (R. P. Naidu et al. 2024), and the dust attenuation curve of D. Calzetti et al. (2000). Galaxy SFRs are derived by averaging over the most recent 50 Myr of star formation history from the Prospector posteriors.\r\n\r\nFigure 2 (left) shows the impact parameter distribution of the 40 EIGER galaxies relative to the background quasars (black star symbols). The galaxies are randomly distributed with respect to the quasar sight lines. The right panel shows their stellar masses and SFRs, with symbols color coded by galaxy redshift. Following R. Bordoloi et al. (2024), we estimate halo masses and virial radii (Rvir) using abundance matching from P. Behroozi et al. (2019). Uncertainties in Rvir are propagated from the 16th and 84th percentile stellar mass errors, giving a mean uncertainty of ΔRvir = 1.8 kpc. The galaxies span stellar masses of and SFRs of , with all systems being star-forming by selection.\r\n\r\nZoom InZoom OutReset image size\r\nFigure 2. Properties of 40 spectroscopically confirmed galaxies at 5.9 ≤ z ≤ 6.4 within 300 kpc of background quasars in the EIGER survey. Each square denotes a galaxy and is color coded by redshift. Left: angular positions and impact parameters relative to the background quasar (black star), with dashed concentric rings marking 100, 200, and 300 kpc at z = 6. Right: stellar mass vs. SFR, averaged over the last 50 Myr. Error bars show the 16th–84th percentile uncertainties in stellar mass and SFR.\r\n\r\nDownload figure:\r\n\r\nStandard image\r\nHigh-resolution image\r\nOne galaxy (z = 5.910384, galaxyID = 15362, qsoID = J159) has an exceptionally high stellar mass of , beyond the calibrated range of the P. Behroozi et al. (2019) relation. This object exhibits a compact, pointlike morphology and likely hosts an obscured AGN, placing it among the recently identified population of little red dots (LRDs; e.g., J. Matthee et al. 2024). We do not detect broad Hβ for this object. However, this is not unexpected, as LRDs can have Hα/Hβ values as high as ∼10 (M. Brooks et al. (2025; A. Torralba et al. 2026, in preparation). As robust AGN modeling at these redshifts is not yet established, we estimated its halo mass by linearly extrapolating the P. Behroozi et al. (2019) relation from the stable stellar mass regime. We explicitly note where this assumption may affect our results in the following sections. Additionally, this galaxy has not been plotted in the right panel of 2.\r\n\r\n3.3. Galaxy Overdensities\r\nA significant fraction of z ≥ 6 galaxies in the EIGER survey are not isolated but are found in overdense environments, either as mergers or members of “protogroups” (see, e.g., D. Kashino et al. 2026). The EIGER [O iii] galaxy catalog already merges individual [O iii] emission clumps within 2″ into a single system, even when they exhibit complex morphologies or merger signatures. To identify larger-scale overdensities, we therefore search for galaxies that lie at similar redshifts but are widely separated on the sky.\r\n\r\nWithin 300 kpc from the QSO sight lines, we identify overdensities around the 40 selected EIGER galaxies using a friends-of-friends algorithm (R. Bordoloi et al. 2025). Galaxies are grouped as an overdensity if they lie within 1 pMpc in projected separation and within ±1000 km s−1 in redshift space. A galaxy is considered part of an overdensity only if all members are “fully” connected, i.e., each galaxy in the overdensity satisfies these conditions with all other members. Around each detected O i absorption system, we further search for overdensities within ±1500 km s−1 of the absorber redshift, and merge these associations to ensure all clustered galaxies are treated as a single overdensity. This conservative approach ensures that we capture the full galaxy environment of O i absorbers. The 40 galaxies studied in this work are part of 15 distinct overdensities, with each grouping containing 1–5 members. The number of galaxies in each grouping is reported in Table 1. The typical velocity dispersion of these overdensities is 449.2 km s−1.\r\n\r\nTable 1. O i Absorption Lines and Associated Galaxy Properties\r\n\r\nLabel\tQuasar\tzgala\tR\t〈v〉b\t#c\tzO I\t\t\t\t\t\r\n \t \t \t(kpc)\t(km s−1)\tGalaxies\t \t(cm−2)\t(cm−2)\t(cm−2)\t(cm−2)\t(cm−2)\r\n(1)\t(2)\t(3)\t(4)\t(5)\t(6)\t(7)\t(8)\t(9)\t(10)\t(11)\t(12)\r\na\tJ0100\t5.941\t119.6\t157\t5\t5.945\t\t\t\t\t\r\nb\tJ1148\t6.008\t157.5\t130\t3\t6.011\t\td\t\t\t\r\nc\tJ159\t5.934\t25.2\t−920\t5\t5.913\t\t\t\t⋯\t⋯\r\nd\tJ159\t6.049\t40.8\t230\t2\t6.054\t\t<13.12\t\t⋯\t⋯\r\ne\tJ1030\t6.075\t147.9\t−131\t2\t6.076\te\t\t\t⋯\t⋯\r\nNotes. The galaxies listed are the primary members of groups with detections at the lowest impact parameter from the host quasar. aRedshift of the primary member of the overdensity. bVelocity offset of O i relative to the primary member galaxy of the overdensity. cNumber of galaxy members in the overdensity. dFor this system, Si II λ1304 was not present, so the value given here is derived from fitting Si II λ1526. eThis system is blended; see discussion in Section 3.4.\r\n\r\nDownload table as: \r\nASCII\r\nTypeset image\r\n\r\nThroughout this work, we define the galaxy with the smallest impact parameter to the background quasar sight line within each galaxy overdensity as the primary member. This convention is adopted solely to simplify the presentation and does not imply a unique physical association between the intervening absorption system and this galaxy. In fact, the concept of a unique absorber–galaxy association at high redshift is significantly less robust than in the low-redshift Universe (e.g., R. Bordoloi et al. 2024). As discussed in Section 4.1, none of the O i absorption systems lie within the virial radius of any individual halo. Even at low redshift, the galaxy with the smallest impact parameter is not necessarily the one with the smallest velocity offset from the absorber, and therefore does not constitute evidence for a unique absorber–galaxy pair (A. Hamanowicz et al. 2020). This behavior is also observed for galaxies residing in groups (R. Bordoloi et al. 2011). Our analysis, therefore, focuses on the broader environment, which we argue is most appropriately characterized by galaxy overdensities, and our choice of a primary galaxy does not affect our main conclusions.\r\n\r\n3.4. Absorption-line Detection and Measurements\r\nWe follow the procedures outlined in R. Bordoloi et al. (2024) to identify and measure the strength of O i absorption systems around EIGER galaxies, and provide a brief summary here. We first use a custom Python-based 1D spectrum viewer to identify and tabulate all intervening absorption lines in the EIGER quasar spectra. A semiautomated CGM absorption-line analysis pipeline is then used to perform the measurements. For each galaxy, we extract a ±1500 km s−1 spectral window centered on its systemic redshift, for all transitions of interest. In this work, we analyze slices around O i λ1302, Si ii λ1260, Si ii λ1304, Si ii λ1527, C ii λ1334, Si iv λ1393, Si iv λ1402, C iv λ1548, and C iv λ1550. Each slice is locally continuum-normalized using an automated Legendre polynomial fit, with the polynomial order chosen via the Bayesian Information Criterion. The continuum fits and absorption features are visually inspected, and both rest-frame equivalent widths (Wr) and apparent optical depth (AOD) column densities are measured. We define a detection as any absorption system with Wr ≥ 3σw, where σw is the 1σ uncertainty in Wr. We note that this uncertainty contains both the statistical uncertainty due to the signal-to-noise ratio of the data and the continuum-fitting uncertainty. Nondetections are reported as 2σw upper limits measured within ±100 km s−1 of the systemic redshift of the galaxy. For column density, we report the 2σ uncertainty on AOD column density as an upper limit on nondetections. When a transition is detected in multiple instruments, each spectrum is analyzed independently, and the inverse-variance-weighted mean is adopted as the final Wr. The details of this automated approach and full documentation of the APIs used can be found in R. Bordoloi et al. (2025).\r\n\r\nFor all detections, we perform Voigt profile fitting using the rbvfit package, which employs Markov Chain Monte Carlo (MCMC) sampling to simultaneously fit multiple absorption systems across different instruments (R. Bordoloi & J. Higginson 2025). This approach yields robust column densities, resolves the kinematic structure, and enables accurate modeling of blended lines. Additionally, since we obtain a marginalized posterior distribution for the fitted parameters, the results yield accurate column density estimates even if the Doppler b parameter or velocity centroids are not well constrained in moderate-resolution spectra (see discussion in R. Bordoloi et al. 2024). In our case, most of the O i Si ii C ii transitions are all covered by higher-resolution HIRES spectroscopy and thus their properties are well constrained. rbvfit supports two MCMC samplers, emcee (D. Foreman-Mackey et al. 2013) and zeus (M. Karamanis et al. 2021; M. Karamanis & F. Beutler 2020), both of which are used in this work depending on the complexity of the fit. We typically adopt 50 walkers with initial perturbations of either 10−3 or 10−6, and default chain lengths of 8000–20,000 steps, ensuring the total number of steps exceeds 50 times the autocorrelation time. Additional steps are run as needed to achieve convergence. In each case, a flat prior is assumed with reasonable physical bounds.\r\n\r\nFigure 3 shows an example of Voigt profile fits to O i λ1302 and Si ii λ1304 lines simultaneously modeled across FIRE, X-shooter, and HIRES. We fit a two-component Voigt profile with a mean velocity offset from the host galaxy of voffset =  157 km s−1 . This joint fitting maximizes information from all instruments while preserving the kinematic detail provided by higher-resolution data. Galaxy overdensities associated with this system are marked with green vertical ticks. This system has a total O i column density 13.46. All other O i fits are presented in Figure 8. All absorption-line measurements are presented in Table 1.\r\n\r\nZoom InZoom OutReset image size\r\nFigure 3. Voigt profile fits to O i and Si ii absorption profiles at z = 5.945 toward the quasar SDSS J0100+2802. Shown are the flux (black), error spectrum (red), best-fit Voigt model (orange/black), and individual Voigt components (thin blue), using data from FIRE, X-shooter, and HIRES. Vertical green lines mark galaxy members of the associated overdensity. Spectra from all instruments and all transitions are simultaneously fit using the rbvfit Bayesian absorption-line fitter.\r\n\r\nDownload figure:\r\n\r\nStandard image\r\nHigh-resolution image\r\nWe note that an O i and Si ii absorption system is detected along the J1030 quasar sight line at z ∼ 6.075, blended with an intervening C iv absorber at z ∼ 4.948 (Figure 8, top left panels; see also C. G. Díaz et al. 2021). The z ∼ 6.076 system is confirmed by the independent detection of Si ii, Mg ii, C ii, and Fe ii absorption in FIRE and X-shooter data, and we simultaneously fit the C iv, O i, and Si ii systems across three instruments. Although the proximity of the C iv doublet in wavelength space introduces an inherent degeneracy with the O i and Si ii pair, high-resolution HIRES data reveal sufficient kinematic substructure to warrant an additional component at a mean velocity offset of voffset = –85.4 km s−1. We interpret this component as O i, supported by the aforementioned coincident detections. To constrain the system, we use the secondary lines to fix the velocity centroid of the O i component and perform simultaneous Voigt profile fitting across all three instruments, including both C iv transitions and single-component O i and Si ii models. The column density reported in this work corresponds to this singular O i component, and the system is marked with an asterisk in Table 1.\r\n\r\n3.5. O i Absorption Detection Completeness\r\nWe quantify the completeness of O i absorption detection around each galaxy as follows. For each galaxy overdensity, we compute the detection sensitivity on a pixel-by-pixel basis following the general framework of, e.g., K. M. Lanzetta et al. (1987), M. L. Bernet et al. (2010), and N. L. Mathes et al. (2017). In particular, we use a continuum-normalized spectral slice of ±1500 km s−1 centered on the expected O i absorption at the redshift of each galaxy overdensity.\r\n\r\nWe define the completeness in O i absorption detection in a single instrument as\r\n\r\nwhere H is the Heaviside step function, and is the equivalent-width cutoff at which completeness is defined. We adopt Å to facilitate comparison with the literature (see Section 4.2). Nσ is the detection threshold, which we set to Nσ = 3 by convention. The equivalent-width error, σEW(z), is given by\r\n\r\nwhere Δλj is the wavelength spacing between adjacent pixels (set by the spectrograph), and npix is the number of pixels over which the equivalent width is computed. We adopt the typical width of an O i absorber as npix for our analysis, yielding npix, X-shooter = 10, npix, HIRES = 50, and npix, FIRE = 11, respectively. This is a conservative approach to calculating completeness, as the typical width of the absorbers is larger than the resolving power of the instruments. We neglect continuum-fitting errors, so σEW(z) reflects only statistical uncertainties from the spectra. Any chip gaps or sky lines are masked. σI and Ic are the flux uncertainty and continuum levels of the spectrum.\r\n\r\nFor galaxy overdensities observed with multiple spectrographs, we define the combined completeness as requiring detection in at least one instrument across the relevant wavelength range. For example, with three or more instruments available,\r\n\r\nwhere the logical OR (∨) runs over all instruments i ∈ X-shooter, FIRE, HIRES. We then compute the mean completeness for each overdensity, and obtain the overall mean completeness, , by averaging over all overdensities weighted by their wavelength coverage. This yields a mean completeness of 91.4% for O i absorption around galaxy overdensities in the EIGER survey for 0.05 Å.\r\n\r\n4. Results\r\nIn this section, we present the variation of O i absorption around z ∼ 6 galaxies, the incidence of O i absorption per comoving path length that is due to O i absorption around galaxies, and the chemical abundance of these systems.\r\n\r\n4.1. Variation of O i Absorption around Galaxies\r\nSince all 40 galaxies in our sample reside within 15 identified overdensities (Section 3.3), we investigate whether O i absorption is preferentially detected in these environments. For clarity, we show the primary galaxy in each overdensity (as defined in Section 3.3) when presenting the radial distribution of O i absorption. Out of the 15 overdensities, 5 show associated O i absorption.\r\n\r\nFigure 4 shows the 2D spatial distribution of galaxies around these five detected systems, with the size depicting the virial radii of the galaxies. The galaxies are randomly distributed around the absorbers, and we do not find correlations with stellar mass, star formation, or other galaxy properties. In all five cases where we have O i detection, the galaxy member with the minimum impact parameter is also the member with the lowest R/Rvir.\r\n\r\nZoom InZoom OutReset image size\r\nFigure 4. Galaxy overdensities around z ∼ 6 O i absorbers in the EIGER survey. Each panel shows the background quasar (red star) at the center, with foreground galaxies associated with O i absorption marked as circles. Circles are color coded by the velocity offset between the galaxy and the O i absorber, and circle sizes are scaled to their virial radii. Only galaxies within 300 kpc of the quasar are shown, highlighting the overdensities nearest the absorbers. Dashed circles denote projected impact parameters of 50, 100, 200, and 300 pkpc from the quasar.\r\n\r\nDownload figure:\r\n\r\nStandard image\r\nHigh-resolution image\r\nFigure 5 presents 1D the radial profiles around the primary galaxies in these systems. The marker size indicates the number of member galaxies in each overdensity, while the color encodes the velocity offset from the corresponding O i absorption. Panels (a) and (c) show impact parameter (R), and panels (b) and (d) show the same distribution normalized by the halo virial radius (R/Rvir).\r\n\r\nZoom InZoom OutReset image size\r\nFigure 5. Radial absorption profiles of O i absorption at z ∼ 6. Each point marks the impact parameter to the nearest galaxy in a galaxy overdensity, with all detected O i absorption arising in such environments. Overdensities with O i absorption are shown as circles, while nondetections (2σ limits) are indicated by downward arrows. Points are color coded by the velocity offset between the galaxy redshift and the O i absorber, and their size scales with the number of members in the overdensity. The mean uncertainty on the virial radius is ΔRvir = 1.81 kpc. Top panels: rest-frame equivalent width vs. impact parameter (R, left) and normalized impact parameter (R/Rvir, right). Bottom panels: same as above, but for O i column densities.\r\n\r\nDownload figure:\r\n\r\nStandard image\r\nHigh-resolution image\r\nMost of the O i detections occur within R ≲ 175 kpc of the primary galaxy, corresponding to an incidence rate of , estimated using 68% Wilson score confidence intervals. Within 100 kpc, the incidence is , increasing to for R ≤ 50 kpc. Conversely, at R  >  150 kpc, an incidence of is measured. Within 300 kpc of the primary galaxy, the overall incidence is , with values of for 50 ≤ R ≤ 300 kpc and for 100 ≤ R ≤ 300 kpc. These rates are substantially weaker than the incidence of strong Mg ii absorption at z ∼ 6 (R. Bordoloi et al. 2024), indicating that neutral oxygen preferentially traces a different phase of the circumgalactic environment.\r\n\r\nPanels (b) and (d) reveal that O i absorbers are typically located at much larger R/Rvir than strong low-ionization tracers such as Mg ii. This distinction suggests that O i absorption at z ∼ 6 is not confined to the CGM of an individual galaxy but instead reflects the larger-scale gaseous environment of galaxy overdensities—what might be described as “cosmic ecosystems” rather than isolated halos.\r\n\r\nComparing the stellar mass distributions of overdensities with and without O i absorption, we find no statistically significant differences. The mean stellar mass of galaxies in overdensities with absorption is , compared to for those without.\r\n\r\nWe emphasize that at z ∼ 6, the large R/Rvir values of these halos imply that O i absorption typically arises at scales well beyond the typical CGM [R/Rvir ≲ 1] (J. Tumlinson et al. 2017) probed by low-ionization lines at lower redshift. Unlike the low-z CGM, where metal absorbers are closely tied to the halo of a single massive galaxy, the O i absorbers studied here appear to be linked to extended networks of low-mass, young galaxies embedded in shared overdensities. Over cosmic time, these small systems and their diffuse gaseous environments are expected to merge and evolve into more massive systems, eventually forming Milky Way–like galaxies by z = 0. Thus, neutral O i at reionization is best understood not as a tracer of isolated galactic halos, but as a probe of the extended environments that connect galaxies, gas, and structure growth in the early Universe.\r\n\r\nBecause O i absorption traces dense, neutral gas and requires only minimal ionization corrections, we can place a conservative lower limit on the total oxygen mass associated with the EIGER galaxies. These estimates are intended as simple, order-of-magnitude calculations to provide intuition about the amount of neutral oxygen relative to the observed galaxy properties. Following the formalism of R. Bordoloi et al. (2014), the oxygen mass contained in an annulus bounded by Rin and Rout is\r\n\r\nwhere Rin and Rout are the inner and outer radii of the annulus, fc is the covering fraction (the incidence of O i detections in that bin), 〈NOI〉 is the mean O i column density in the annulus, and mO = 16 mp is the mass of an oxygen atom, with mp being the mass of a proton. For a conservative lower limit, we adopt fion = 1, where fion is the ionization fraction (i.e., we assume that all of the oxygen mass is in the neutral phase). We justify this assumption as follows: O i is tightly coupled to H i through charge exchange, and in dense gas, the required ionization correction is minor, even under strong radiation fields such as the Fermi Bubbles (R. Bordoloi et al. 2017; T. Ashley et al. 2022). Under a typical metagalactic UV background, it is generally less than 10% and does not significantly alter the inferred oxygen abundance. In addition, oxygen does not deplete onto dust grains, unlike Si or C. For these reasons, we consider the approximation NO,total ≈ NOI to be valid for our analysis.\r\n\r\nWe compute masses in two radial bins: 0–100 kpc and 100–300 kpc, respectively. The total oxygen mass within radius is obtained by summing the masses of the constituent annuli. This yields a strict lower limit of  ≳  2 ×106M⊙ on the total oxygen mass within = 300 kpc.\r\n\r\nWe compare the inferred oxygen mass in the extended environment of our sample with the total oxygen content in the interstellar medium (ISM) of a typical z ∼ 6 galaxy. In computing this quantity, we make the following assumptions. First, we assume that all galaxies in this work lie on the typical z ∼ 6 mass–metallicity relation, derived by stacking [O iii] emitter galaxies (J. Matthee et al. 2022), and we adopt the gas-phase metallicity from this relation for each galaxy.\r\n\r\nBecause direct measurements of the total H2 and H i gas content are not available at these redshifts, we extrapolate the molecular gas fraction from L. J. Tacconi et al. (2018) to z ∼ 6 and adopt a conservative H i gas fraction based on local observations (S. Huang et al. 2012). We note that high-z galaxies are likely more gas-rich than their local counterparts; therefore, the inferred ISM gas masses should be considered lower limits.\r\n\r\nWith these caveats in mind, we estimate the total ISM oxygen mass as\r\n\r\nwhere we define . Here, XO is the gas-phase oxygen abundance derived from the mass–metallicity relation, and and MHI are the molecular and atomic gas masses derived as described above. For our galaxy sample, the mean stellar mass is , corresponding to an ISM oxygen mass of MO,ISM  ≳  6.8 × 105 M⊙. Remarkably, this indicates that the typical ISM oxygen content is comparable to the oxygen mass in the extended environment around these galaxies, implying that the circumgalactic or intergalactic medium at z ∼ 6 contains a substantial reservoir of oxygen. While these estimates depend on several specific assumptions, the inferred ISM and CGM oxygen masses appear to be of similar magnitude.\r\n\r\nAt low redshift, both L* and sub-L* galaxies similarly exhibit substantial metal content in their circumgalactic medium (CGM), with the CGM containing at least as much metal as the ISM of their host galaxies (J. Tumlinson et al. 2011; R. Bordoloi et al. 2014). A key difference is that, whereas the low-z CGM is typically gravitationally bound to its host galaxy, at high redshift much of the gas exists in the extended environment of galaxy overdensities rather than being bound to individual galaxies (see also R. Bordoloi et al. 2024).\r\n\r\n4.2. Expected Incidence of O i Absorbers\r\nIn this section, we report the expected redshift-path incidence of O i absorbers around [O iii] emitting galaxies detected in the EIGER survey. We define the number of O i absorbers associated with each galaxy overdensity per unit absorption distance above a detection threshold (WOI ≥ 0.05Å ) as\r\n\r\n\r\nHere, Rmax = 300 kpc is the survey radius adopted in this work, and is the mean O i absorber detection completeness (see Section 3.5; 91.4% for WOI ≥ 0.05 Å). nOD is defined as\r\n\r\n\r\nngal is the number density of [O iii] emitting galaxies per unit comoving volume, estimated from the [O iii] luminosity function at z ∼ 6. And 〈overdensity size〉 is simply the mean number of galaxies in each galaxy overdensity empirically measured to be 〈overdensity size〉 = 2.67. fc is the O i absorption covering fraction within 300 kpc for WOI ≥ 0.05 Å (). (The covering fraction within 300 kpc is independent of the definition of the primary member.)\r\n\r\nTo estimate the number density of galaxies per unit comoving volume (ngal), we integrate the z ∼ 6 [O iii] luminosity function derived from the EIGER survey, with a minimum luminosity of Lmin = 1042.2 ergs−1 (J. Matthee et al. 2022):\r\n\r\n\r\nwhere Φ(L) is the [O iii] luminosity function defined as\r\n\r\n\r\nHere, Φ* is the characteristic number density, L* is the characteristic luminosity, and α is the faint-end slope. We adopt Φ* = 10−4.02 Mpc−3, L* = 1043.33 ergs−1, and α = −1.92, values derived from detailed completeness calculations of the EIGER [O iii]-emitting galaxies (R. Mackenzie et al. 2026, in preparation). This results in ngal = 8.586 × 10−04 Mpc−3. Using these values in Equation (6) yields , for O i absorption around galaxies at a mean galaxy redshift of 6.001.\r\n\r\nAll calculations in this section are performed with a detection threshold of WOI > 0.05Å, since the survey is highly complete down to this equivalent-width limit and because most of the literature surveys we compare against adopt the same threshold.\r\n\r\nWe emphasize that this approach differs from blind QSO absorption-line surveys (e.g., G. D. Becker et al. 2006; L. Christensen et al. 2023; A. M. Sebastian et al. 2024; A. Sodini et al. 2024), where all O i absorption-line systems along the full quasar redshift path are counted to compute dN/dX directly, under the assumption that the absorber cross section is contributed by all galaxies. In contrast, our method begins by defining the absorber cross section around galaxy overdensities and then estimating the corresponding contribution to dN/dX from the galaxy overdensities under study. Comparing these two approaches constrains the fraction of O i (or other metal) absorption systems that arise in the extended halos of these galaxies. Figure 6 shows these literature measurements as colored circles, while the contribution to dN/dX around z ∼ 6 galaxy overdensities is indicated by an orange square. To quantify the relative contribution of galaxy overdensities, we fit a single power law to all literature values at z  >  4 (blue dashed line with shaded region). Comparing the dN/dX inferred from quasar absorption-line surveys at z ∼ 6 to our measured value, we find that O i dN/dX around z ∼ 6 EIGER galaxy environments account for 35% ± 16% of all O i absorption-line systems detected in blind quasar surveys. This implies that [O iii] emitting galaxy environments at z ∼ 6 contribute roughly one-third of the O i absorption systems at that epoch. Although the EIGER QSOs were selected to have known absorption systems along their sight lines, the EIGER galaxy survey around these sight lines is highly complete and independent of this selection. Therefore, we can create an unbiased measurement of the absorption cross section (dN/dX) around these galaxy overdensities. We justify this comparison to blind absorption surveys in Section 2.\r\n\r\nZoom InZoom OutReset image size\r\nFigure 6. Incidence of O i absorbers per comoving path length, dN/dX. Values are derived from all O i absorption lines along high-z quasar sight lines. Literature measurements are shown from G. D. Becker et al. (2019; blue circles), L. Christensen et al. (2023; purple circles), and A. M. Sebastian et al. (2024; red circles). The blue dashed line shows a power-law fit to the z  > 4 literature data, with the shaded region marking the 1σ uncertainty. The orange square gives the inferred dN/dX when including only O i absorption associated with host galaxies (see Section 4.2), indicating that only ∼35% of O i absorbers at z ∼ 6 arise in galaxy environments.\r\n\r\nDownload figure:\r\n\r\nStandard image\r\nHigh-resolution image\r\nThis in turn suggests that ∼65% of the O i absorption systems detected along quasar sight lines at the epoch of reionization are not associated with [O iii] emitter galaxy overdensities. Either the bulk of O i absorption resides in isolated pockets of neutral IGM gas outside extended galaxy halos, or it is contributed by even lower-luminosity, less massive galaxies () that fall below the EIGER detection limits. Such systems may also be detected in galaxy halos that are oxygen-poor or lack strong [O iii] emission features, since our galaxy identifications primarily rely on [O iii] and Hβ emission lines.\r\n\r\nSimulations suggest that O i absorption should primarily arise in galactic halos rather than in the diffuse IGM, since metals are not widely distributed and ionization fronts propagate more quickly than metals (B. D. Oppenheimer et al. 2009; K. Finlator et al. 2013). Very low-mass protogalaxies forming their first stars may blur the boundary between IGM and CGM, enriching their surroundings with metals, especially if their star formation is bursty and prolific. If sufficiently numerous, such systems could contribute a nonnegligible fraction of oxygen in the early Universe.\r\n\r\nRecent observations support this possibility. K. Nakajima et al. (2025) reported a strongly lensed (μ = 98) galaxy at z ≈ 6.6 with a stellar mass upper limit of only ∼2700 M⊙ and a dynamical mass ∼100 times larger. The source shows emission and may be dominated by Population III stars. This provides direct evidence of oxygen production in extremely low-mass systems. A population of such ultralow-mass dwarf galaxies could plausibly account for the ∼65% of O i absorbers detected along quasar sight lines that are not associated with galaxies in our survey. Our sensitivity limit of (J. Matthee et al. 2022) means such dwarfs remain undetected. However, these galaxies may lack a dense enough CGM to shield neutral O i from the UV background; thus, even if they produce oxygen, neutral O i may not survive (K. Finlator et al. 2013). Interestingly, simulations by S. Kušmić et al. (2024) showed that the contribution of metal ions, including O i, is only weakly correlated with the stellar mass of the galaxy, and the contribution is indistinguishable when comparing across galaxy luminosities. Additionally, they argue that due to the steep slope of the stellar mass function, lower-mass, lower-luminosity galaxies contribute the majority of absorbing metal ions in the CGM and IGM.\r\n\r\nLater simulation works by C. Doughty et al. (2018); C. Doughty & K. Finlator (2019) suggest that as the Epoch of Reionization continues, O i will reduce overall but be preferentially found in higher column density regions close to halos, as they have a better ability to self-shield from ionizing photons. In fact, C. Doughty & K. Finlator (2019) found that at z = 6 the majority of O i mass was located in the ISM of galaxies and only ∼30% of O i mass was found in the CGM and IGM. In contrast, in this work, we find that a substantial (comparable to ISM mass) oxygen mass exists outside galaxies; however, we stress that our mass measurements are order-of-magnitude estimates. A more direct comparison between these simulations and this work is the covering fraction. They report ∼5%–25% covering fraction at z = 6 for O i with out to 102 pkpc. In the EIGER survey, we report a covering fraction using a minimum threshold of WOI ≥ 0.05 Å (or approximately logNOI > 13.7 cm−2) out to 300 kpc. Given the large measurement uncertainties and different definitions of associated galaxies, the covering fractions are qualitatively consistent between the two works.\r\n\r\nThe simulations of K. Finlator et al. (2013) suggest that O i absorbers with are most likely associated with halos of mass ∼109 M⊙, where self-shielding is efficient. They further predict that only ∼13% of all O i absorption systems should reside in halos of 1010–1011.5 M⊙, the mass range of galaxies probed in this work. By contrast, we measure a higher dN/dX of ∼35%, but qualitatively our results remain consistent with the idea that roughly two-thirds of O i absorbers are associated with undetected ∼109 M⊙ halos. Future observations targeting lower-luminosity galaxies and higher redshifts will be essential to test these predictions.\r\n\r\nAfter the initial posting of this manuscript, G. Pruto et al. (2026) presented a simulation-based study that adopts the observational compilation shown in Figure 6 as a reference and explores the corresponding behavior in numerical models. Our minimum Wr threshold corresponds to ; therefore, the most appropriate comparison is with their sample. Qualitatively, the two sets of results are in agreement. A key distinction lies in the definition of galactic environment. We characterize environments in terms of galaxy overdensities, which we argue is the most appropriate description of where O i absorbers reside at z ≈ 6, whereas G. Pruto et al. (2026) define the CGM based on the virial radii of halos with . As a result, a direct quantitative comparison is not straightforward. Nevertheless, their inferred dN/dX corresponds to an incidence rate of O i absorbers of ∼58% ± 11%, which is consistent with our measurements within the uncertainties. This agreement may depend on their tighter constraints on absorber location and on the adopted minimum Wr or threshold. G. Pruto et al. (2026) further report that ∼80% of O i absorbers with are predicted to lie outside the CGM, also in qualitative agreement with our findings.\r\n\r\n4.3. Metal Abundances in O i absorber population\r\nIn this section, we examine the relative abundances and metal column density ratios of O i absorbers associated with galaxy overdensities, and compare them to O i absorbers without any associated galaxies. To enable a fair comparison, we restrict our analysis to the six quasar sight lines from the EIGER survey and identify all O i absorption systems in the redshift range where an [O iii]-emitting galaxy could be detected (5.9 ≤ zOI ≤ zQSO). We detect 10 O i absorption systems in total, 5 of which have associated galaxy overdensities (Table 1) and 5 are without any identified galaxy association.\r\n\r\nWe first compare the ionic column density ratios in these two populations. Figure 7 (top panels) shows the ratios of NSiII/NOI and NCII/NOI as functions of NOI. Systems located near galaxy overdensities (blue squares) systematically show higher Si ii/O i and C ii/O i ratios compared to systems without associated overdensities (green crosses). This offset could reflect differences in metallicity, or alternatively, the effects of ionization. However, since the majority of these O i systems lack detectable high-ionization transitions, it is reasonable to assume that neutral oxygen and singly ionized silicon and carbon dominate the elemental reservoirs (see also L. Christensen et al. 2023). In those cases, the observed ionic ratios provide direct tracers of relative abundances. Two exceptions are found along the J0100 and J1148 sight lines, which do exhibit Si iv and C iv absorption; for these systems, the degeneracy between chemical composition and ionization corrections cannot be resolved. It is plausible that, on average, O i absorption found near galaxy overdensities has higher elemental abundance ratios as the non-galaxy-associated absorbers either have significantly lower-luminosity and less massive galaxies, which would be expected to produce less metal, or there are truly no galaxies associated with this population.\r\n\r\nZoom InZoom OutReset image size\r\nFigure 7. Top panels: ion column density ratios of Si ii to O i (left) and C ii to O i (right) as a function of the detected O i column densities, shown in logarithmic units. Absorbers associated with galaxy overdensities (blue squares) and those not associated with galaxy overdensities (green crosses) exhibit clear variations in their column density ratios. One sight line with no detected Si ii absorption is indicated with a downward arrow, where a 2σ upper limit on the column density is assumed. Bottom panel: relative abundance ratios [Si/O] vs. [C/O] with respect to solar abundance. The background contours show the IMF-weighted abundance distributions from Population II and Population III SN models. Orange and pink circles indicate abundance ratios predicted by low-metallicity Population II SN models. The abundance ratios of several O i absorbers associated with galaxy overdensities are consistent with a significant contribution from Population III SNe.\r\n\r\nDownload figure:\r\n\r\nStandard image\r\nHigh-resolution image\r\nWe next compute the relative abundances [Si/O] and [C/O], presented in the bottom panel of Figure 7. These abundances are defined as\r\n\r\n\r\nwhere NSi,tot and NC,tot represent the summed ionic column densities. For systems with detected high-ionization absorption (C iv or Si iv), we include both low- and high-ionization states (NSiII + NSiIV and NCII + NCIV), marking these measurements as lower limits (blue upward arrows in the figure) since additional undetected ionization states may be present. We note that in the two systems (a and b) exhibiting high-ionization absorption (see Table 1), the low- and high-ionization absorption components are offset in velocity by Δv = –66 km s−1 and –69 km s−1, respectively. These offsets are within ≲1.5 resolution elements of the instrument, and therefore we cannot statistically distinguish whether the low- and high-ionization components are kinematically distinct. This is suggestive of a complex, potentially multiphase gaseous environment in the outskirts of these galaxies. For systems without detected high-ionization transitions, we adopt NSiII and NCII as the dominant contributions. We assume NO,tot ≈ NOI, as ionization corrections for O i are typically very small at high O i column densities (see Section 4.1 for discussion). We adopt solar reference abundances of = −1.18 ± 0.05 and (M. Asplund et al. 2021).\r\n\r\nFigure 7 (bottom panel) reveals a striking separation between O i absorbers associated with galaxy overdensities (blue squares) and those without galaxy associations (green crosses). Systems near galaxies are found in the upper left of the [Si/O]–[C/O] diagram, with two cases exhibiting high-ionization absorption (lower abundance limits, blue arrows), which will offset them even farther from the locus of nongalaxy absorbers.\r\n\r\nWe place these abundance patterns in the context of chemical enrichment models from different stellar populations (see also L. Christensen et al. 2023). The contours and colored circles in Figure 7 highlight predicted [C/O] and [Si/O] yields from representative Population II and Population III supernova (SN) models, weighted by a Salpeter IMF. The weighting by number of stars predicted by an IMF is done to represent the typical observational relative abundance distribution in these models. These are not exhaustive but span the dominant theoretical expectations.\r\n\r\nPopulation III pair-instability SNe (PISNe; 140–260M⊙; light green contours) predict narrow [C/O] ≃ –0.7 and high [Si/O] values, inconsistent with any of our observed systems. Such PISNe are also expected to produce substantial amounts of iron-peak elements, leading to elevated Fe/O ratios (J. Tumlinson et al. 2004). We will investigate Mg ii and Fe ii absorption associated with z ∼ 6 galaxies in an upcoming work (J. Higginson et al. 2026, in preparation). Models of massive Population III stars (10–100 M⊙) produce both hypernovae (gray contours; E > 1052 erg) and standard core-collapse SNe (light blue contours; A. Heger & S. E. Woosley 2010), spanning a broader region overlapping some of our measurements. We also consider Population II models: low-metallicity core-collapse SNe from M. Limongi & A. Chieffi (2018; orange contours, Population II SNe (L18)) occupy −0.25 ≲ [C/O] ≲ 0.5 and −0.4 ≲ [Si/O] ≲ 0.4, overlapping parts of the Population III range, while the C. Kobayashi et al. (2006) yields (pink and orange circles for hypernovae and SNe, respectively) tend toward lower [Si/O] and [C/O].\r\n\r\nAgainst these predictions, the contrast between the two absorber populations is clear. All nongalaxy O i systems (green crosses) fall at the lower left of the diagram, consistent with enrichment from both Population II and/or Population III SNe models. This regime also overlaps with ultra-metal-poor damped Lyman-α absorbers (DLAs) at z ∼ 3 (−0.5 ≲ [Si/O] ≲ 0, −0.5 ≲ [C/O] ≲ 0; R. Cooke et al. 2011; R. J. Cooke et al. 2017). By contrast, three of the five galaxy-associated absorbers lie well outside both the locus of Population II predictions and the locus of ultra-metal-poor DLA relative abundances. These systems are best explained if Population III enrichment played a major role, suggesting that they may represent a distinct population from ultra-metal-poor DLA host galaxies (see also A. Sodini et al. 2024).\r\n\r\nSimilarly, A. Sodini et al. (2024) found that the [C/O] and [Si/O] abundance ratios for high-redshift O i absorber systems are consistent with significant enrichment from Population III, with the majority explained by ≥ 30% contributions. They also find a large spread in the implied Population III contribution; several systems require ≥ 60% contributions, while others fall significantly below the average. This is a strong indication of heterogeneous chemical enrichment by Population III stars during the epoch of reionization.\r\n\r\nThe absorber toward J159 at z = 5.91 shows [C/O] = 0.20, [Si/O] = 0.55 (labeled c), and no evidence of high-ionization absorption. These abundance ratios are best explained by contributions from Population III SNe or hypernovae. The absorber toward J1030 at z = 6.07 ([C/O] = −0.38, [Si/O] = 0.65, labeled e) also shows no high-ionization absorption. The relative abundances in these two predominantly neutral systems are therefore quite robust. Interestingly, the J1030 system is not reproduced by any single Population II or Population III model, suggesting that it may have experienced multiple enrichment episodes, producing unusually high [Si/O] coupled with low [C/O].\r\n\r\nTwo cases require special mention. The absorber toward J0100 at z = 5.94 shows [C/O] ≥ 0.42 and [Si/O] ≥ 0.67 (labeled a), with strong C iv and Si iv absorption. Since these are lower limits, ionization corrections (for carbon and silicon) would push this system further upward, strengthening the case for Population III contributions. This observation is best explained by contributions from Population III hypernovae models. The J1148 absorber at z = 6.01 shows [C/O] ≥ 0.02 and [Si/O] ≥ 0.20 (labeled b), again with high-ionization lines; correcting for ionization would shift it diagonally upward in the diagram. Taken together, four of the five galaxy-associated absorbers show relative abundances that cannot be explained by Population II models alone, pointing instead to significant enrichment from Population III SNe or hypernovae.\r\n\r\nThus, most galaxy-associated O i systems carry signatures of Population III enrichment. These results suggest that O i systems tracing galaxy overdensities at z ∼ 6 carry chemical signatures of Population III enrichment, likely from multiple SNe events rather than a single explosion. The elevated [Si/O] and [C/O] ratios in these environments imply that [O iii]—emitting galaxies at this epoch may retain significant Population III contributions, and that metal-line absorbers around such overdensities provide a powerful probe of the first generations of stars.\r\n\r\n4.4. Comparison to the z ≈ 0 Universe\r\nAt z ∼ 6, we cannot directly detect the local environments where O i absorption systems arise. However, at z ∼ 0, there are instances where the environments giving rise to O i absorption are well understood. Here, we discuss several such instances and compare them with z ∼ 6 observations. Such comparisons can provide useful insights regarding the nature of local environments within which O i systems exist at high z. We focus on O i absorption associated with local blue compact dwarf (BCD) galaxies and the Magellanic Stream (MS), owing to their low metallicities and well-characterized local environments.\r\n\r\nThere is evidence that O i is found preferentially in the H ii regions of local BCDs, with their H i regions being pristine or showing very low levels of enrichment (D. Kunth et al. 1994; M. Pettini & K. Lipman 1995; T. X. Thuan & Y. I. Izotov 1997). In particular, T. X. Thuan & Y. I. Izotov (1997) report that, to varying degrees, low-ionization metal lines (e.g., O i and Si ii) reside in the ionized hydrogen regions of BCDs rather than the neutral hydrogen regions. They report . Compared to the z ∼ 6 measurements in panel (b) of Figure 7, the O i column density of the BCD is comparable, but the Si ii-to-O i ratio is inconsistent with the z ∼ 6 values. On the other hand, V. Lebouteiller et al. (2004) find that the H ii region of the BCD I Zw 36 has significantly higher metallicity than its H i region. However, inferred from velocity offsets, O i in that system is associated with the H i region. The reported O i column density of that BCD () is approximately 2 orders of magnitude higher than the z ∼ 6 sample. Given the available evidence, we conclude that the observed z ∼ 6 O i absorption systems are not similar to local BCD systems and are unlikely to originate in H ii regions.\r\n\r\nThe MS is a filamentary trail of gas in the Local Group. Multiphase absorption-line observations from A. J. Fox et al. (2013) and P. Richter et al. (2013) support the argument that the MS was tidally stripped from the Magellanic Clouds approximately 2 Gyr ago. Inferences from the abundance ratios of alpha elements in the MS are best explained by contributions from massive stars via Type II SNe when the MS was still part of the Magellanic Clouds, although the presence of significant dust depletion makes further inferences into enrichment history difficult. An additional study of the MS (N. Kumari et al. 2015) reports abundance ratios in a compact high-velocity cloud (CHVC) that is believed to be associated with the MS. They find [Si/O] = −0.04 ± 0.25 and [C/O] = −0.09 ± 0.23. When comparing these with the z ∼ 6 observations presented in panel (c) of Figure 7, we see that the CHVC abundance ratios occupy a different region of parameter space than the z ≈ 6 O i absorbers within identified galactic overdensities showing Population III enrichment signatures (points a, c, e). This discrepancy provides evidence that these z ∼ 6 O i absorbers with Population III enrichment signatures are unlikely to arise in environments similar to the MS. However, the ionic ratios of O i absorption systems not associated with galaxy overdensities (green crosses) are consistent with this measurement. With the caveat that MS measurements do contain dust depletion effects, it is plausible that such O i systems may trace IGM structures with densities comparable to those of the MS at high z.\r\n\r\n5. Conclusion\r\nWe have conducted a survey of neutral O i absorption systems associated with galaxies during the Epoch of Reionization in the EIGER survey, using six high-redshift quasars as background sight lines. Our study focuses on the distribution of neutral oxygen around -emitting galaxies within 300 kpc and their connection to galaxy overdensities. The main results are as follows:\r\n\r\n1.  \r\nFive O i absorbers are detected among 15 galaxy overdensities, spanning z = 5.91–6.16 with a mean redshift 〈z〉 = 6.001.\r\n2.  \r\nThe O i covering fraction within 300 kpc of the closest galaxy is , with for R ≤ 50 kpc and for 50 ≤ R ≤ 300 kpc, where the covering fraction is calculated using the galaxy in an overdensity with the lowest impact parameter.\r\n3.  \r\nWe find  ≳ 2 × 106 M⊙ of oxygen within 300 kpc, a mass comparable to the ISM oxygen content of z ∼ 6 galaxies—assuming minimal ionization correction (see Section 4.1 for justification)—suggesting that the circumgalactic environment already holds metal reservoirs rivaling those inside galaxies.\r\n4.  \r\nO i absorbers are detected as far as ∼8 R/Rvir from galaxies, in sharp contrast to low-ionization tracers such as Mg ii, which are typically confined within ≲R/Rvir.\r\n5.  \r\nThe incidence of galaxy-associated O i absorbers is \r\n \r\n. Comparison with blind quasar absorption-line surveys indicates that these systems represent only ∼35% of all O i absorbers at z ∼ 6, implying that the majority likely arise in lower-mass galaxies below current detection limits or in dense neutral IGM pockets that survived reionization.\r\n6.  \r\nRelative abundance and ionization ratios ([Si/O], [C/O]) show that galaxy-associated O i systems are chemically enriched, with signatures in several systems consistent with contributions from Population III stars. In particular, we identify four galaxy overdensities whose outskirts exhibit absorption-line abundance ratios consistent with contributions from Population III nucleosynthesis.\r\n\r\nOverall, these results indicate that neutral O i at z ∼ 6 primarily traces extended overdensity environments rather than the CGM of individual halos. Moreover, the chemical abundance patterns of galaxy-associated O i systems suggest contributions from Population III stars, likely arising from multiple SNe events rather than a single explosion. The elevated [Si/O] and [C/O] ratios imply that [O iii]-emitting galaxies at this epoch may retain significant Population III enrichment. Consequently, metal-line absorbers around such overdensities offer a powerful probe of the first generations of stars, providing insight into early chemical enrichment and the role of primordial stellar populations in shaping galaxy evolution during the Epoch of Reionization.\r\n\r\nAcknowledgments\r\nThis work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program #1243. This paper includes data gathered with the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile. This work was supported by a NASA Keck PI Data Award, administered by the NASA Exoplanet Science Institute. Data presented herein were obtained at the W. M. Keck Observatory from telescope time allocated to the National Aeronautics and Space Administration (NASA) through the agency’s scientific partnership with the California Institute of Technology and the University of California. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The JWST data presented in this article were obtained from the Mikulski Archive for Space Telescopes (MAST) at the Space Telescope Science Institute. The specific observations analyzed can be accessed via DOI: 10.17909/y94q-h212. This work was partially supported by the National Science Foundation under grant No. AST-2108931. Jorryt Matthee and Ivan Kramarenko acknowledge funding from the European Union (ERC, AGENTS, 101076224).\r\n\r\nFacilities: JWST - James Webb Space Telescope (NIRCam), Magellan: Baade - (FIRE), VLT: Kueyen - (X-shooter), and Keck: I - (HIRES, MOSFIRE).\r\n\r\nSoftware: astropy (Astropy Collaboration et al. 2013, 2018, 2022), rbcodes (R. Bordoloi et al. 2025), rbvfit (R. Bordoloi & J. Higginson 2025).","citation":{"chicago":"Higginson, Jack, Rongmon Bordoloi, Robert A. Simcoe, Jorryt J Matthee, Daichi Kashino, Ruari Mackenzie, Ivan Kramarenko, et al. “EIGER. VIII. First Stars Signatures in the Connection between O I Absorption and Galaxies in the Epoch of Reionization.” <i>The Astrophysical Journal</i>. IOP Publishing, 2026. <a href=\"https://doi.org/10.3847/1538-4357/ae3e81\">https://doi.org/10.3847/1538-4357/ae3e81</a>.","apa":"Higginson, J., Bordoloi, R., Simcoe, R. A., Matthee, J. J., Kashino, D., Mackenzie, R., … Yue, M. (2026). EIGER. VIII. First stars signatures in the connection between O I absorption and galaxies in the epoch of reionization. <i>The Astrophysical Journal</i>. IOP Publishing. <a href=\"https://doi.org/10.3847/1538-4357/ae3e81\">https://doi.org/10.3847/1538-4357/ae3e81</a>","ama":"Higginson J, Bordoloi R, Simcoe RA, et al. EIGER. VIII. First stars signatures in the connection between O I absorption and galaxies in the epoch of reionization. <i>The Astrophysical Journal</i>. 2026;999(1). doi:<a href=\"https://doi.org/10.3847/1538-4357/ae3e81\">10.3847/1538-4357/ae3e81</a>","mla":"Higginson, Jack, et al. “EIGER. VIII. First Stars Signatures in the Connection between O I Absorption and Galaxies in the Epoch of Reionization.” <i>The Astrophysical Journal</i>, vol. 999, no. 1, 49, IOP Publishing, 2026, doi:<a href=\"https://doi.org/10.3847/1538-4357/ae3e81\">10.3847/1538-4357/ae3e81</a>.","ieee":"J. Higginson <i>et al.</i>, “EIGER. VIII. First stars signatures in the connection between O I absorption and galaxies in the epoch of reionization,” <i>The Astrophysical Journal</i>, vol. 999, no. 1. IOP Publishing, 2026.","short":"J. Higginson, R. Bordoloi, R.A. Simcoe, J.J. Matthee, D. Kashino, R. Mackenzie, I. Kramarenko, S.J. Lilly, A.-C. Eilers, R.P. Naidu, M. Yue, The Astrophysical Journal 999 (2026).","ista":"Higginson J, Bordoloi R, Simcoe RA, Matthee JJ, Kashino D, Mackenzie R, Kramarenko I, Lilly SJ, Eilers A-C, Naidu RP, Yue M. 2026. EIGER. VIII. First stars signatures in the connection between O I absorption and galaxies in the epoch of reionization. The Astrophysical Journal. 999(1), 49."},"DOAJ_listed":"1","project":[{"_id":"bd9b2118-d553-11ed-ba76-db24564edfea","name":"Young galaxies as tracers and agents of cosmic reionization","grant_number":"101076224"}],"date_updated":"2026-10-14T07:58:57Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","PlanS_conform":"1","title":"EIGER. VIII. First stars signatures in the connection between O I absorption and galaxies in the epoch of reionization","_id":"23115","date_created":"2026-10-12T12:15:27Z","status":"public","author":[{"full_name":"Higginson, Jack","first_name":"Jack","last_name":"Higginson"},{"full_name":"Bordoloi, Rongmon","last_name":"Bordoloi","first_name":"Rongmon"},{"first_name":"Robert A.","last_name":"Simcoe","full_name":"Simcoe, Robert A."},{"orcid":"0000-0003-2871-127X","full_name":"Matthee, Jorryt J","last_name":"Matthee","first_name":"Jorryt J","id":"7439a258-f3c0-11ec-9501-9df22fe06720"},{"last_name":"Kashino","first_name":"Daichi","full_name":"Kashino, Daichi"},{"last_name":"Mackenzie","first_name":"Ruari","full_name":"Mackenzie, Ruari"},{"orcid":"0000-0001-5346-6048","full_name":"Kramarenko, Ivan","id":"9a9394cb-3200-11ee-973b-f5ba2a8b16e4","last_name":"Kramarenko","first_name":"Ivan"},{"full_name":"Lilly, Simon J.","last_name":"Lilly","first_name":"Simon J."},{"last_name":"Eilers","first_name":"Anna-Christina","full_name":"Eilers, Anna-Christina"},{"full_name":"Naidu, Rohan P.","last_name":"Naidu","first_name":"Rohan P."},{"full_name":"Yue, Minghao","last_name":"Yue","first_name":"Minghao"}],"type":"journal_article","oa_version":"Published Version","article_type":"original","abstract":[{"lang":"eng","text":"We investigate the association between galaxies and neutral O I absorption systems at z ∼ 6, which trace metalenriched gas during the epoch of reionization. We identify 40 galaxies across six quasar fields, residing in 15\r\noverdensities within 300 kpc of the background sight lines. Five O I absorption systems are associated with five of\r\nthese overdensities, yielding a covering fraction of\r\n0.27 0.10\r\n+0.13\r\nwithin 300 kpc. The absorption occurs beyond typical\r\nvirial radii, indicating that the gas traces extended overdensity environments rather than individual galaxy halos,\r\nunlike the z ∼ 0 circumgalactic medium (CGM), which is largely bound to halos. These galaxy-associated\r\nabsorbers account for ∼35% of all O I systems seen in blind quasar surveys, implying the remainder arise in\r\nlower-mass galaxies below our detection threshold or in dense neutral intergalactic medium pockets. The CGM\r\naround these galaxies contains ≳ 2 × 106 M⊙ of oxygen, comparable to the interstellar medium oxygen mass of\r\nthe galaxies themselves, suggesting that the surrounding environment holds as much metal mass as the galaxies.\r\nAll five galaxy-associated systems show significantly higher\r\nlog NCII NOI ( / )\r\nratios than absorbers lacking galaxy\r\nassociations. Furthermore, relative abundance ratios ([Si/O], [C/O]) reveal that four of the five exhibit\r\nenrichment patterns consistent with Population III nucleosynthesis at the outskirts of galaxy overdensities. These\r\nrare systems offer a unique window into the role of first-generation stars in shaping the early metal enrichment of\r\ngalaxies and their environments."}],"article_number":"49","volume":999,"doi":"10.3847/1538-4357/ae3e81","file":[{"file_id":"23136","file_size":2808503,"file_name":"2026_AstrophysicalJour_Higginson.pdf","content_type":"application/pdf","date_updated":"2026-10-14T07:50:51Z","date_created":"2026-10-14T07:50:51Z","checksum":"1b8caf640c32d0d27a078bfb27ffcf8a","success":1,"relation":"main_file","creator":"dernst","access_level":"open_access"}],"day":"24","oa":1,"external_id":{"arxiv":["2510.05220"]},"publisher":"IOP Publishing","month":"02","department":[{"_id":"JoMa"},{"_id":"GradSch"}],"has_accepted_license":"1","file_date_updated":"2026-10-14T07:50:51Z","date_published":"2026-02-24T00:00:00Z","article_processing_charge":"Yes","fulldoi":"https://doi.org/10.3847/1538-4357/ae3e81","arxiv":1,"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"ddc":["520"],"publication_status":"published","year":"2026","quality_controlled":"1","intvolume":"       999"},{"day":"28","oa":1,"external_id":{"arxiv":["2506.03121"]},"publisher":"IOP Publishing","month":"01","department":[{"_id":"JoMa"}],"article_number":"280","volume":997,"doi":"10.3847/1538-4357/ae2799","researchdata_availability":"no","file":[{"access_level":"open_access","creator":"dernst","relation":"main_file","success":1,"checksum":"c33405da323cac352c0d751f0fe6f021","date_created":"2026-10-14T08:09:31Z","content_type":"application/pdf","date_updated":"2026-10-14T08:09:31Z","file_name":"2026_AstrophysicalJour_Kashino.pdf","file_size":11393255,"file_id":"23138"}],"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"ddc":["520"],"publication_status":"published","quality_controlled":"1","year":"2026","intvolume":"       997","has_accepted_license":"1","date_published":"2026-01-28T00:00:00Z","file_date_updated":"2026-10-14T08:09:31Z","article_processing_charge":"Yes","das_tickbox":"0","fulldoi":"https://doi.org/10.3847/1538-4357/ae2799","arxiv":1,"publication":"The Astrophysical Journal","scopus_import":"1","issue":"2","publication_identifier":{"eissn":["1538-4357"],"issn":["0004-637X"]},"acknowledgement":"We thank Enrico Garaldi, Rahul Kannan, Aaron Smith, and the THESAN team for providing us with their simulation data, and Norbert Pirzkal for helpful advice on our NIRCam observing program.\r\n\r\nThis work is based on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations were taken under GTO program No. 1243. The specific observations analyzed can be accessed via doi:10.17909/6grb-j154.\r\n\r\nThe participation of S.J.L. as an Interdisciplinary Scientist in the JWST Flight Science Working Group 2002-2022 has been supported by the European Space Agency. His earlier involvement in the development of the JWST 1996–2001 was supported by the Canadian Space Agency.\r\n\r\nThis work is partially based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere under ESO programmes 084.A-0360(A), 084.A-0390(A), 086.A-0162(A), 086.A-0574(A), 087.A-0607(A), 089.A-0814(A), 093.A-0707(A), 098.B-0537(A), and 286.A-5025(A). Some of the data presented herein were obtained at Keck Observatory, which is a private 501(c)3 nonprofit organization operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. This paper includes data gathered with the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile.\r\n\r\nThis work has been supported by JSPS KAKENHI grant No. JP21K13956 (D.K.). J.M. is supported by the European Union (ERC, AGENTS, 101076224).\r\n\r\nFacilities: JWST - James Webb Space Telescope (NIRCam), VLT:Kueyen - Very Large Telescope (Kueyen) (X-Shooter), Magellan:Baade - Magellan I Walter Baade Telescope (FIRE), Keck:I - KECK I Telescope (MOSFIRE), Keck:II - KECK II Telescope (ESI).\r\n\r\nSoftware: Python, numpy (C. R. Harris et al. 2020), scipy (P. Virtanen et al. 2020), Astropy (Astropy Collaboration et al. 2013), Matplotlib (J. D. Hunter 2007), PypeIt (J. X. Prochaska et al. 2019).","OA_type":"gold","OA_place":"publisher","language":[{"iso":"eng"}],"title":"EIGER. VII. The evolving relationship between galaxies and the intergalactic medium in the final stages of reionization","_id":"23117","status":"public","author":[{"full_name":"Kashino, Daichi","first_name":"Daichi","last_name":"Kashino"},{"last_name":"Lilly","first_name":"Simon J.","full_name":"Lilly, Simon J."},{"last_name":"Matthee","first_name":"Jorryt J","id":"7439a258-f3c0-11ec-9501-9df22fe06720","orcid":"0000-0003-2871-127X","full_name":"Matthee, Jorryt J"},{"first_name":"Ruari","last_name":"Mackenzie","full_name":"Mackenzie, Ruari"},{"full_name":"Eilers, Anna-Christina","last_name":"Eilers","first_name":"Anna-Christina"},{"last_name":"Bordoloi","first_name":"Rongmon","full_name":"Bordoloi, Rongmon"},{"full_name":"Simcoe, Robert A.","first_name":"Robert A.","last_name":"Simcoe"},{"last_name":"Naidu","first_name":"Rohan P.","full_name":"Naidu, Rohan P."},{"last_name":"Yue","first_name":"Minghao","full_name":"Yue, Minghao"},{"full_name":"Liu, Bin","last_name":"Liu","first_name":"Bin"}],"date_created":"2026-10-12T12:17:25Z","type":"journal_article","oa_version":"Published Version","article_type":"original","abstract":[{"text":"We present a comprehensive analysis of the relationship between galaxies and the intergalactic medium (IGM) during the late stages of cosmic reionization, based on the complete JWST EIGER dataset. Using deep NIRCam 3.5 μm slitless spectroscopy, we construct a sample of 948 [O iii]λ5008-emitting galaxies with −21.4 ≲ MUV ≲ −17.2 spanning 5.33 < z < 6.97 along six quasar sight lines. We correlate these galaxies with Lyα and Lyβ transmission measured from high-resolution quasar spectra across multiple redshift intervals. We find clear redshift evolution in the correlation between galaxy density and transmission: it is suppressed in overdense regions at z < 5.50, while enhanced at 5.70 < z < 6.15. The intermediate range exhibits a transitional behavior. Cross-correlation measurements further reveal excess absorption within ∼8 cMpc of galaxies at low redshifts, and enhanced transmission at intermediate scales (∼5–20 cMpc) at z > 5.70. Statistical tests using mock catalogs with realistic galaxy clustering but no correlation with the transmission field confirm that the observed correlations are unlikely to arise by chance. The evolving signals can be explained by stronger absorption in overdense regions, combined with the competing influences of local radiation fields and the rising background radiation. While local radiation dominates ionization of the surrounding IGM at earlier times, the background becomes increasingly important, eventually surpassing the impact of nearby galaxies. These results support an inside-out progression of reionization, with ionized regions originating around clustered, star-forming galaxies and gradually extending into underdense regions.","lang":"eng"}],"citation":{"mla":"Kashino, Daichi, et al. “EIGER. VII. The Evolving Relationship between Galaxies and the Intergalactic Medium in the Final Stages of Reionization.” <i>The Astrophysical Journal</i>, vol. 997, no. 2, 280, IOP Publishing, 2026, doi:<a href=\"https://doi.org/10.3847/1538-4357/ae2799\">10.3847/1538-4357/ae2799</a>.","ama":"Kashino D, Lilly SJ, Matthee JJ, et al. EIGER. VII. The evolving relationship between galaxies and the intergalactic medium in the final stages of reionization. <i>The Astrophysical Journal</i>. 2026;997(2). doi:<a href=\"https://doi.org/10.3847/1538-4357/ae2799\">10.3847/1538-4357/ae2799</a>","ieee":"D. Kashino <i>et al.</i>, “EIGER. VII. The evolving relationship between galaxies and the intergalactic medium in the final stages of reionization,” <i>The Astrophysical Journal</i>, vol. 997, no. 2. IOP Publishing, 2026.","short":"D. Kashino, S.J. Lilly, J.J. Matthee, R. Mackenzie, A.-C. Eilers, R. Bordoloi, R.A. Simcoe, R.P. Naidu, M. Yue, B. Liu, The Astrophysical Journal 997 (2026).","ista":"Kashino D, Lilly SJ, Matthee JJ, Mackenzie R, Eilers A-C, Bordoloi R, Simcoe RA, Naidu RP, Yue M, Liu B. 2026. EIGER. VII. The evolving relationship between galaxies and the intergalactic medium in the final stages of reionization. The Astrophysical Journal. 997(2), 280.","chicago":"Kashino, Daichi, Simon J. Lilly, Jorryt J Matthee, Ruari Mackenzie, Anna-Christina Eilers, Rongmon Bordoloi, Robert A. Simcoe, Rohan P. Naidu, Minghao Yue, and Bin Liu. “EIGER. VII. The Evolving Relationship between Galaxies and the Intergalactic Medium in the Final Stages of Reionization.” <i>The Astrophysical Journal</i>. IOP Publishing, 2026. <a href=\"https://doi.org/10.3847/1538-4357/ae2799\">https://doi.org/10.3847/1538-4357/ae2799</a>.","apa":"Kashino, D., Lilly, S. J., Matthee, J. J., Mackenzie, R., Eilers, A.-C., Bordoloi, R., … Liu, B. (2026). EIGER. VII. The evolving relationship between galaxies and the intergalactic medium in the final stages of reionization. <i>The Astrophysical Journal</i>. IOP Publishing. <a href=\"https://doi.org/10.3847/1538-4357/ae2799\">https://doi.org/10.3847/1538-4357/ae2799</a>"},"DOAJ_listed":"1","project":[{"_id":"bd9b2118-d553-11ed-ba76-db24564edfea","name":"Young galaxies as tracers and agents of cosmic reionization","grant_number":"101076224"}],"supplementarymaterial":"yes","date_updated":"2026-10-14T08:12:05Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","PlanS_conform":"1"},{"volume":6,"file":[{"file_name":"2026_ACSNanoscienceAu_BroJorgensen.pdf","content_type":"application/pdf","date_updated":"2026-10-14T07:07:43Z","file_size":6463446,"file_id":"23135","access_level":"open_access","relation":"main_file","creator":"dernst","success":1,"date_created":"2026-10-14T07:07:43Z","checksum":"87cc93f52ba508a7d19d7c03e9ef55cb"}],"doi":"10.1021/acsnanoscienceau.6c00052","researchdata_availability":"yes","dataavailabilitystatement":"Input and output files for the MD trajectories are available in our ioChem-BD repository (85) and can be accessed here: 10.19061/iochem-bd-9-14. Raw data for all MD trajectories are available here: 10.17894/ucph.78aa9ec7-d132-447f-aaf0-8e6e5d59d8ea","day":"19","oa":1,"external_id":{"chemrxivid":["10.26434/chemrxiv-2025-wt6rd/v2"],"pmid":["42630769"]},"department":[{"_id":"LaVe"}],"month":"08","publisher":"American Chemical Society","date_published":"2026-08-19T00:00:00Z","file_date_updated":"2026-10-14T07:07:43Z","has_accepted_license":"1","article_processing_charge":"Yes","fulldoi":"https://doi.org/10.1021/acsnanoscienceau.6c00052","chemrxivid":1,"das_tickbox":"1","tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"ddc":["540"],"quality_controlled":"1","pmid":1,"year":"2026","publication_status":"published","intvolume":"         6","OA_place":"publisher","OA_type":"gold","language":[{"iso":"eng"}],"publication":"ACS Nanoscience Au","issue":"4","scopus_import":"1","acknowledgement":"The authors thank Latha Venkataraman for fruitful discussions about the main results of this paper. This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 865870). Junfeng Lin thanks the Institute of Science and Technology Austria for support.","publication_identifier":{"issn":["2694-2496"]},"page":"662-673","DOAJ_listed":"1","citation":{"chicago":"Bro-Jørgensen, William, Junfeng Lin, Joseph M. Hamill, and Gemma C. Solomon. “Machine Learning-Enhanced Molecular Dynamics of 4,4′-Bipyridinein a Break Junction: A Supramolecular Origin of the High Conductance.” <i>ACS Nanoscience Au</i>. American Chemical Society, 2026. <a href=\"https://doi.org/10.1021/acsnanoscienceau.6c00052\">https://doi.org/10.1021/acsnanoscienceau.6c00052</a>.","apa":"Bro-Jørgensen, W., Lin, J., Hamill, J. M., &#38; Solomon, G. C. (2026). Machine learning-enhanced molecular dynamics of 4,4′-bipyridinein a break junction: A supramolecular origin of the high conductance. <i>ACS Nanoscience Au</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsnanoscienceau.6c00052\">https://doi.org/10.1021/acsnanoscienceau.6c00052</a>","ama":"Bro-Jørgensen W, Lin J, Hamill JM, Solomon GC. Machine learning-enhanced molecular dynamics of 4,4′-bipyridinein a break junction: A supramolecular origin of the high conductance. <i>ACS Nanoscience Au</i>. 2026;6(4):662-673. doi:<a href=\"https://doi.org/10.1021/acsnanoscienceau.6c00052\">10.1021/acsnanoscienceau.6c00052</a>","mla":"Bro-Jørgensen, William, et al. “Machine Learning-Enhanced Molecular Dynamics of 4,4′-Bipyridinein a Break Junction: A Supramolecular Origin of the High Conductance.” <i>ACS Nanoscience Au</i>, vol. 6, no. 4, American Chemical Society, 2026, pp. 662–73, doi:<a href=\"https://doi.org/10.1021/acsnanoscienceau.6c00052\">10.1021/acsnanoscienceau.6c00052</a>.","ieee":"W. Bro-Jørgensen, J. Lin, J. M. Hamill, and G. C. Solomon, “Machine learning-enhanced molecular dynamics of 4,4′-bipyridinein a break junction: A supramolecular origin of the high conductance,” <i>ACS Nanoscience Au</i>, vol. 6, no. 4. American Chemical Society, pp. 662–673, 2026.","short":"W. Bro-Jørgensen, J. Lin, J.M. Hamill, G.C. Solomon, ACS Nanoscience Au 6 (2026) 662–673.","ista":"Bro-Jørgensen W, Lin J, Hamill JM, Solomon GC. 2026. Machine learning-enhanced molecular dynamics of 4,4′-bipyridinein a break junction: A supramolecular origin of the high conductance. ACS Nanoscience Au. 6(4), 662–673."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","supplementarymaterial":"yes","date_updated":"2026-10-14T07:09:01Z","PlanS_conform":"1","_id":"23111","title":"Machine learning-enhanced molecular dynamics of 4,4′-bipyridinein a break junction: A supramolecular origin of the high conductance","status":"public","date_created":"2026-10-12T12:01:45Z","author":[{"first_name":"William","last_name":"Bro-Jørgensen","full_name":"Bro-Jørgensen, William"},{"last_name":"Lin","first_name":"Junfeng","id":"a25c6e57-a657-11ef-8665-c4906b069ffc","full_name":"Lin, Junfeng"},{"full_name":"Hamill, Joseph M.","last_name":"Hamill","first_name":"Joseph M."},{"first_name":"Gemma C.","last_name":"Solomon","full_name":"Solomon, Gemma C."}],"article_type":"original","type":"journal_article","oa_version":"Published Version","abstract":[{"lang":"eng","text":"In single-molecule electronics, 4,4′-bipyridine is a well-characterized molecule that serves both as a fundamental testbed for developing experimental methodologies and showcases the complex behaviors expected from molecular electronic components. In break junction experiments, it is generally understood to exhibit a high- and a low-conductance state that are attributed to a tilted and stretched single-molecule configuration. Despite this established view, we suggest a supramolecular origin for these conductance states that has not previously been considered. Our findings indicate that the high- and low-conductance states may arise from the presence of two molecules and one molecule, respectively, challenging the conventional interpretation. Using a state-of-the-art machine learning force field called the neuroevolution potential, we find that the conventional interpretation of a tilted and stretched configuration is inconsistent with our simulations. Instead, our results suggest that the presence of two molecules promotes junction geometries and gold rearrangements that stabilize a high-conductance state whose transmission exceeds twice that of the low-conductance state. Furthermore, we compare this interpretation to the existing literature of diverse experimental data on 4,4′-bipyridine in break junctions and find that it is consistent with the broader body of experimental evidence. Our results highlight the structural complexity of molecular behavior within break junctions, suggesting even more complex dynamics than originally anticipated. In this light, a broader examination of the dynamics of molecules in single-molecule break junctions with machine learning-assisted molecular dynamics is warranted."}]},{"issue":"1","scopus_import":"1","publication":"The Astrophysical Journal","publication_identifier":{"issn":["0004-637X"],"eissn":["1538-4357"]},"acknowledgement":"C.X. thanks the Department of Astronomy of Columbia University, where the majority of this work was performed. Z.H. thanks the Center for Computational Astrophysics (CCA) at the Flatiron Institute for their hospitality during a sabbatical stay, where this work was initiated. The Flatiron Institute is a division of the Simons Foundation. This work was supported in part by NASA’s LISA Preparatory Science Program (LPS) through grant 80NSSC24K0440 and by NASA Astrophysics Theory Program (ATP) grant 80NSSC22K0822. The authors thank the anonymous referee for helpful feedback, which improved this manuscript. We also thank Prof. Brian D. Metzger, Prof. David Schiminovich, and Prof. Kishalay De for valuable discussions.\r\n\r\nSoftware: numpyro (E. Bingham et al. 2019; D. Phan et al. 2019); celerite2 (D. Foreman-Mackey et al. 2017; D. Foreman-Mackey 2018); Python (G. Van Rossum & F. L. Drake 2009); The Software Citation Station (T. Wagg & F. S. Broekgaarden 2024; T. Wagg et al. 2024).","OA_type":"gold","OA_place":"publisher","language":[{"iso":"eng"}],"status":"public","date_created":"2026-10-12T12:16:19Z","author":[{"full_name":"Xin, Chengcheng","first_name":"Chengcheng","last_name":"Xin"},{"last_name":"Isi","first_name":"Maximiliano","full_name":"Isi, Maximiliano"},{"first_name":"Will M.","last_name":"Farr","full_name":"Farr, Will M."},{"first_name":"Zoltán","last_name":"Haiman","id":"7c006e8c-cc0d-11ee-8322-cb904ef76f36","orcid":"0000-0003-3633-5403","full_name":"Haiman, Zoltán"}],"_id":"23116","title":"Identifying compact chirping SMBHBs in LSST using Bayesian analysis","abstract":[{"lang":"eng","text":"The Legacy Survey of Space and Time (LSST) is expected to observe up to ∼100 million quasars in the next decade. In this work, we show that it is possible to use such data to measure the characteristic frequency evolution of a “chirp” induced by gravitational waves, which can serve as robust evidence for the presence of a compact supermassive black hole binary. Following the LSST specifications, we generate mock lightcurves consisting of (i) a post-Newtonian chirp produced by orbital motion through, e.g., relativistic Doppler boosting, (ii) a damped random walk representing intrinsic quasar variability, and (iii) Gaussian photometric errors, while assuming nonuniform observations with extended gaps over a period of 10 yr. Through a fully Bayesian analysis, we show that we can simultaneously measure the chirp and noise parameters with little degeneracy between the two. For chirp signals with an amplitude of A = 0.5 mag and a range of times to merger (tm = 15–104 yr), we can typically measure a nonzero amplitude and positive frequency derivative with over 5σ credibility. For binaries with tm = 50 yr, we achieve 3σ (5σ) confidence that the signal is chirping for A ≳ 0.1 (A  >  0.2). The median runtime of our analysis is 5.6 minutes, with a minimum as low as 35 s, making it scalable to a large number of lightcurves. This implies that LSST could, on its own, establish the presence of a compact supermassive black hole binary, and thus discover gravitational wave sources detectable by LISA and by Pulsar Timing Arrays."}],"article_type":"original","type":"journal_article","oa_version":"Published Version","DOAJ_listed":"1","citation":{"ama":"Xin C, Isi M, Farr WM, Haiman Z. Identifying compact chirping SMBHBs in LSST using Bayesian analysis. <i>The Astrophysical Journal</i>. 2026;999(1). doi:<a href=\"https://doi.org/10.3847/1538-4357/ae40b3\">10.3847/1538-4357/ae40b3</a>","mla":"Xin, Chengcheng, et al. “Identifying Compact Chirping SMBHBs in LSST Using Bayesian Analysis.” <i>The Astrophysical Journal</i>, vol. 999, no. 1, 149, IOP Publishing, 2026, doi:<a href=\"https://doi.org/10.3847/1538-4357/ae40b3\">10.3847/1538-4357/ae40b3</a>.","ieee":"C. Xin, M. Isi, W. M. Farr, and Z. Haiman, “Identifying compact chirping SMBHBs in LSST using Bayesian analysis,” <i>The Astrophysical Journal</i>, vol. 999, no. 1. IOP Publishing, 2026.","ista":"Xin C, Isi M, Farr WM, Haiman Z. 2026. Identifying compact chirping SMBHBs in LSST using Bayesian analysis. The Astrophysical Journal. 999(1), 149.","short":"C. Xin, M. Isi, W.M. Farr, Z. Haiman, The Astrophysical Journal 999 (2026).","chicago":"Xin, Chengcheng, Maximiliano Isi, Will M. Farr, and Zoltán Haiman. “Identifying Compact Chirping SMBHBs in LSST Using Bayesian Analysis.” <i>The Astrophysical Journal</i>. IOP Publishing, 2026. <a href=\"https://doi.org/10.3847/1538-4357/ae40b3\">https://doi.org/10.3847/1538-4357/ae40b3</a>.","apa":"Xin, C., Isi, M., Farr, W. M., &#38; Haiman, Z. (2026). Identifying compact chirping SMBHBs in LSST using Bayesian analysis. <i>The Astrophysical Journal</i>. IOP Publishing. <a href=\"https://doi.org/10.3847/1538-4357/ae40b3\">https://doi.org/10.3847/1538-4357/ae40b3</a>"},"PlanS_conform":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-10-14T08:05:50Z","supplementarymaterial":"yes","oa":1,"day":"27","department":[{"_id":"ZoHa"}],"month":"02","publisher":"IOP Publishing","external_id":{"arxiv":["2506.10846"]},"article_number":"149","file":[{"checksum":"250ede2883cf2e3ec9ac8c36b1857d40","date_created":"2026-10-14T08:02:55Z","success":1,"relation":"main_file","creator":"dernst","access_level":"open_access","file_id":"23137","file_size":4415354,"file_name":"2026_AstrophysicalJour_Xin.pdf","date_updated":"2026-10-14T08:02:55Z","content_type":"application/pdf"}],"doi":"10.3847/1538-4357/ae40b3","researchdata_availability":"no","volume":999,"ddc":["520"],"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"intvolume":"       999","quality_controlled":"1","year":"2026","publication_status":"published","article_processing_charge":"Yes","date_published":"2026-02-27T00:00:00Z","file_date_updated":"2026-10-14T08:02:55Z","has_accepted_license":"1","arxiv":1,"fulldoi":"https://doi.org/10.3847/1538-4357/ae40b3","das_tickbox":"0"},{"citation":{"mla":"Li, Zihao, et al. “First-Star Imprints in a Metal-Poor Galaxy Overdensity near the End of Reionization.” <i>Nature Astronomy</i>, Springer Nature, 2026, doi:<a href=\"https://doi.org/10.1038/s41550-026-02993-5\">10.1038/s41550-026-02993-5</a>.","ama":"Li Z, Kakiichi K, Christensen L, et al. First-star imprints in a metal-poor galaxy overdensity near the end of reionization. <i>Nature Astronomy</i>. 2026. doi:<a href=\"https://doi.org/10.1038/s41550-026-02993-5\">10.1038/s41550-026-02993-5</a>","ieee":"Z. Li <i>et al.</i>, “First-star imprints in a metal-poor galaxy overdensity near the end of reionization,” <i>Nature Astronomy</i>. Springer Nature, 2026.","short":"Z. Li, K. Kakiichi, L. Christensen, Z. Cai, V. D’Odorico, J.J. Matthee, D. Kashino, R. Bordoloi, R. Mackenzie, T.A.M. Berg, I. Vanni, S. Salvadori, A. Venditti, S. Zhang, S.E.I. Bosman, E. Bañados, F.B. Davies, X. Fan, H.D. Jun, X. Jin, M. Li, S. Rojas-Ruiz, F. Wang, J. Yang, S. Zou, H. Zhang, Y. Zhu, Nature Astronomy (2026).","ista":"Li Z, Kakiichi K, Christensen L, Cai Z, D’Odorico V, Matthee JJ, Kashino D, Bordoloi R, Mackenzie R, Berg TAM, Vanni I, Salvadori S, Venditti A, Zhang S, Bosman SEI, Bañados E, Davies FB, Fan X, Jun HD, Jin X, Li M, Rojas-Ruiz S, Wang F, Yang J, Zou S, Zhang H, Zhu Y. 2026. First-star imprints in a metal-poor galaxy overdensity near the end of reionization. Nature Astronomy.","chicago":"Li, Zihao, Koki Kakiichi, Lise Christensen, Zheng Cai, Valentina D’Odorico, Jorryt J Matthee, Daichi Kashino, et al. “First-Star Imprints in a Metal-Poor Galaxy Overdensity near the End of Reionization.” <i>Nature Astronomy</i>. Springer Nature, 2026. <a href=\"https://doi.org/10.1038/s41550-026-02993-5\">https://doi.org/10.1038/s41550-026-02993-5</a>.","apa":"Li, Z., Kakiichi, K., Christensen, L., Cai, Z., D’Odorico, V., Matthee, J. J., … Zhu, Y. (2026). First-star imprints in a metal-poor galaxy overdensity near the end of reionization. <i>Nature Astronomy</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41550-026-02993-5\">https://doi.org/10.1038/s41550-026-02993-5</a>"},"date_updated":"2026-10-14T06:42:17Z","supplementarymaterial":"yes","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"First-star imprints in a metal-poor galaxy overdensity near the end of reionization","_id":"23096","status":"public","date_created":"2026-10-11T22:02:07Z","author":[{"full_name":"Li, Zihao","last_name":"Li","first_name":"Zihao"},{"first_name":"Koki","last_name":"Kakiichi","full_name":"Kakiichi, Koki"},{"first_name":"Lise","last_name":"Christensen","full_name":"Christensen, Lise"},{"full_name":"Cai, Zheng","last_name":"Cai","first_name":"Zheng"},{"first_name":"Valentina","last_name":"D’Odorico","full_name":"D’Odorico, Valentina"},{"last_name":"Matthee","first_name":"Jorryt J","id":"7439a258-f3c0-11ec-9501-9df22fe06720","orcid":"0000-0003-2871-127X","full_name":"Matthee, Jorryt J"},{"last_name":"Kashino","first_name":"Daichi","full_name":"Kashino, Daichi"},{"first_name":"Rongmon","last_name":"Bordoloi","full_name":"Bordoloi, Rongmon"},{"full_name":"Mackenzie, Ruari","last_name":"Mackenzie","first_name":"Ruari"},{"first_name":"Trystyn A.M.","last_name":"Berg","full_name":"Berg, Trystyn A.M."},{"full_name":"Vanni, Irene","first_name":"Irene","last_name":"Vanni"},{"full_name":"Salvadori, Stefania","first_name":"Stefania","last_name":"Salvadori"},{"full_name":"Venditti, Alessandra","last_name":"Venditti","first_name":"Alessandra"},{"full_name":"Zhang, Shiwu","last_name":"Zhang","first_name":"Shiwu"},{"last_name":"Bosman","first_name":"Sarah E.I.","full_name":"Bosman, Sarah E.I."},{"last_name":"Bañados","first_name":"Eduardo","full_name":"Bañados, Eduardo"},{"full_name":"Davies, Frederick B.","first_name":"Frederick B.","last_name":"Davies"},{"full_name":"Fan, Xiaohui","last_name":"Fan","first_name":"Xiaohui"},{"full_name":"Jun, Hyunsung D.","last_name":"Jun","first_name":"Hyunsung D."},{"first_name":"Xiangyu","last_name":"Jin","full_name":"Jin, Xiangyu"},{"full_name":"Li, Mingyu","first_name":"Mingyu","last_name":"Li"},{"full_name":"Rojas-Ruiz, Sofía","last_name":"Rojas-Ruiz","first_name":"Sofía"},{"last_name":"Wang","first_name":"Feige","full_name":"Wang, Feige"},{"full_name":"Yang, Jinyi","last_name":"Yang","first_name":"Jinyi"},{"full_name":"Zou, Siwei","last_name":"Zou","first_name":"Siwei"},{"full_name":"Zhang, Huanian","first_name":"Huanian","last_name":"Zhang"},{"first_name":"Yongda","last_name":"Zhu","full_name":"Zhu, Yongda"}],"type":"journal_article","oa_version":"None","article_type":"original","abstract":[{"lang":"eng","text":"The first generation of stars, known as population III (Pop III), formed from primordial gas consisting solely of hydrogen and helium and is believed to have emerged only a few hundred million years after the Big Bang. Detecting the chemical enrichment of metal-poor circumgalactic gas offers a promising way to trace the enrichment signature of Pop III stars. Along the sight line to the quasar SDSS J0100+2802, a metal absorber at z = 5.945, showing over-abundant carbon and silicon compared with solar, has been reported to be consistent with the enrichment pattern of Pop III stars. Here, using data recorded by the James Webb Space Telescope, we report the discovery of an unusually metal-poor galaxy overdensity of 17 members (mean metallicity ~3% of solar) near this metal absorber, which is ~0.4 dex more metal-poor than coeval galaxies in similarly overdense environments. This less chemically evolved system may have provided favourable conditions for preserving the absorption signatures of Pop III enrichment. We infer a minimum dark matter halo mass of log(Mh,min/M⊙) = 10.68+0.93 −1.72, supporting late-time Pop III formation at the outskirts of atomic hydrogen cooling haloes. Our findings open a promising observational pathway to identifying the chemical imprints of the first stars and constrain the conditions for their formation."}],"OA_type":"closed access","language":[{"iso":"eng"}],"publication":"Nature Astronomy","scopus_import":"1","acknowledgement":"This work is based on observations made with the NASA/ESA/CSA JWST, associated with the programmes GO-1243 and GO-2078, and the Very Large Telescope, associated with ESO programmes X-shooter 0100.A-0625, 0102.A-0154, 1103.A-0817 and 096.A-0095. We acknowledge the University of Copenhagen for giving this project access to the LUMI supercomputer owned by the EuroHPC Joint Undertaking and hosted by CSC (Finland) and the LUMI consortium through Denmark. Z.L. thanks Y. Ren for helpful discussions. We thank O. Zier, A. Smith, R. Kannan and E. Garaldi for helpful discussions about the THESAN-ZOOM simulation. Z.L. acknowledges the fellowship from the Cosmic Dawn Center, which is funded by the Danish National Research Foundation under grant no. 140. K.K. acknowledges support from the Villum Foundation (71574). L.C. is supported by DFF/Independent Research Fund Denmark (2032-00071). V.D. acknowledges financial support from the Bando Ricerca Fondamentale INAF 2022 Large Grant XQR-30. A.V. acknowledges funding from the Cosmic Frontier Center and the University of Texas at Austin’s College of Natural Sciences. S. Zou acknowledges support from the Chinese Academy of Sciences (E5295401).","publication_identifier":{"eissn":["2397-3366"]},"date_published":"2026-09-29T00:00:00Z","article_processing_charge":"No","das_tickbox":"1","fulldoi":"https://doi.org/10.1038/s41550-026-02993-5","publication_status":"epub_ahead","quality_controlled":"1","year":"2026","doi":"10.1038/s41550-026-02993-5","researchdata_availability":"yes","dataavailabilitystatement":"This work is based on observations made with the NASA/ESA/CSA JWST, associated with the programmes GO-1243 and GO-2078, and the Very Large Telescope associated with ESO programmes X-shooter 0100.A-0625, 0102.A-0154, 1103.A-0817 and 096.A-0095. The JWST data are available via the Mikulski Archive for Space Telescopes at http://archive.stsci.edu under JWST programmes GO-2078 (ref. 127) and GO-1243 (ref. 128). The metal absorber catalogue of XQR-30 is available via GitHub at https://github.com/XQR-30/Metal-catalogue. The [O III] emitter catalogue from the EIGER survey is available via GitHub at https://eiger-jwst.github.io/data.html. Other data presented in this paper are available upon request to the corresponding author.","day":"29","publisher":"Springer Nature","department":[{"_id":"JoMa"}],"month":"09"},{"date_published":"2026-11-01T00:00:00Z","keyword":["correlated random matrix","eigenvalue perturbation theory","Local law","Wigner-type matrix"],"article_processing_charge":"No","fulldoi":"https://doi.org/10.3150/26-bej1976","das_tickbox":"0","arxiv":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2503.21472"}],"year":"2026","quality_controlled":"1","publication_status":"published","intvolume":"        32","volume":32,"researchdata_availability":"no","doi":"10.3150/26-bej1976","day":"01","oa":1,"corr_author":"1","external_id":{"arxiv":["2503.21472"]},"department":[{"_id":"LaEr"}],"month":"11","publisher":"Bernoulli Society for Mathematical Statistics and Probability","project":[{"_id":"62796744-2b32-11ec-9570-940b20777f1d","name":"Random matrices beyond Wigner-Dyson-Mehta","call_identifier":"H2020","grant_number":"101020331"}],"citation":{"ama":"Kolupaiev O. Spectral independence of almost fully correlated random matrices. <i>Bernoulli</i>. 2026;32(4):2999-3023. doi:<a href=\"https://doi.org/10.3150/26-bej1976\">10.3150/26-bej1976</a>","mla":"Kolupaiev, Oleksii. “Spectral Independence of Almost Fully Correlated Random Matrices.” <i>Bernoulli</i>, vol. 32, no. 4, Bernoulli Society for Mathematical Statistics and Probability, 2026, pp. 2999–3023, doi:<a href=\"https://doi.org/10.3150/26-bej1976\">10.3150/26-bej1976</a>.","ista":"Kolupaiev O. 2026. Spectral independence of almost fully correlated random matrices. Bernoulli. 32(4), 2999–3023.","ieee":"O. Kolupaiev, “Spectral independence of almost fully correlated random matrices,” <i>Bernoulli</i>, vol. 32, no. 4. Bernoulli Society for Mathematical Statistics and Probability, pp. 2999–3023, 2026.","short":"O. Kolupaiev, Bernoulli 32 (2026) 2999–3023.","chicago":"Kolupaiev, Oleksii. “Spectral Independence of Almost Fully Correlated Random Matrices.” <i>Bernoulli</i>. Bernoulli Society for Mathematical Statistics and Probability, 2026. <a href=\"https://doi.org/10.3150/26-bej1976\">https://doi.org/10.3150/26-bej1976</a>.","apa":"Kolupaiev, O. (2026). Spectral independence of almost fully correlated random matrices. <i>Bernoulli</i>. Bernoulli Society for Mathematical Statistics and Probability. <a href=\"https://doi.org/10.3150/26-bej1976\">https://doi.org/10.3150/26-bej1976</a>"},"page":"2999-3023","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-10-14T07:34:08Z","supplementarymaterial":"no","_id":"23112","title":"Spectral independence of almost fully correlated random matrices","date_created":"2026-10-12T12:04:45Z","author":[{"full_name":"Kolupaiev, Oleksii","orcid":"0000-0003-1491-4623","last_name":"Kolupaiev","first_name":"Oleksii","id":"149b70d4-896a-11ed-bdf8-8c63fd44ca61"}],"status":"public","article_type":"original","oa_version":"Preprint","type":"journal_article","abstract":[{"lang":"eng","text":"We study the joint spectral properties of two coupled random matrices H(1) and H(2), which are either real symmetric or complex Hermitian. The entries of these matrices exhibit polynomially decaying correlations, both within each matrix and between them. Surprisingly, we find that under extremely weak decorrelation condition, permitting H(1) and H(2) to be almost fully correlated, the fluctuations of their individual eigenvalues in the bulk of the spectrum are still asymptotically independent. Furthermore, we demonstrate that this decorrelation condition is optimal."}],"OA_place":"repository","OA_type":"green","language":[{"iso":"eng"}],"publication":"Bernoulli","issue":"4","scopus_import":"1","ec_funded":1,"acknowledgement":"The author is grateful to László Erdős and Giorgio Cipolloni for suggesting the project and fruitful discussions. The author was supported by the ERC Advanced Grant “RMTBeyond” No. 101020331.","publication_identifier":{"issn":["1350-7265"]}},{"language":[{"iso":"eng"}],"OA_place":"publisher","OA_type":"free access","publication_identifier":{"isbn":["9783702512187"],"issn":["1012-0327"]},"publication":"Scrinium","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-10-14T06:56:51Z","citation":{"ama":"Ziletti C. International Council on Archives (ICA) Barcelona Congress 2025, 27-30 October 2025. <i>Scrinium</i>. 2026;80:181-186.","mla":"Ziletti, Chiara. “International Council on Archives (ICA) Barcelona Congress 2025, 27-30 October 2025.” <i>Scrinium</i>, vol. 80, Anton Pustet Verlag, 2026, pp. 181–86.","ieee":"C. Ziletti, “International Council on Archives (ICA) Barcelona Congress 2025, 27-30 October 2025,” <i>Scrinium</i>, vol. 80. Anton Pustet Verlag, pp. 181–186, 2026.","short":"C. Ziletti, Scrinium 80 (2026) 181–186.","ista":"Ziletti C. 2026. International Council on Archives (ICA) Barcelona Congress 2025, 27-30 October 2025. Scrinium. 80, 181–186.","chicago":"Ziletti, Chiara. “International Council on Archives (ICA) Barcelona Congress 2025, 27-30 October 2025.” <i>Scrinium</i>. Anton Pustet Verlag, 2026.","apa":"Ziletti, C. (2026). International Council on Archives (ICA) Barcelona Congress 2025, 27-30 October 2025. <i>Scrinium</i>. Barcelona, Spain: Anton Pustet Verlag."},"page":"181-186","article_type":"editorial","oa_version":"Published Version","type":"journal_article","_id":"23060","title":"International Council on Archives (ICA) Barcelona Congress 2025, 27-30 October 2025","status":"public","date_created":"2026-10-05T14:18:42Z","author":[{"full_name":"Ziletti, Chiara","last_name":"Ziletti","first_name":"Chiara","id":"D865714E-FA4E-11E9-B85B-F5C5E5697425"}],"volume":80,"file":[{"creator":"cziletti","relation":"main_file","access_level":"open_access","date_created":"2026-10-12T09:48:09Z","checksum":"e6fa3953b73e1f900a52a525e82c0685","success":1,"file_size":555357,"content_type":"application/pdf","date_updated":"2026-10-12T09:48:09Z","file_name":"Scrinium_Ziletti.pdf","file_id":"23106"}],"month":"10","department":[{"_id":"E-Lib"}],"publisher":"Anton Pustet Verlag","day":"01","oa":1,"corr_author":"1","file_date_updated":"2026-10-12T09:48:09Z","date_published":"2026-10-01T00:00:00Z","conference":{"name":"ICA: International Council on Archives","start_date":"2025-10-27","end_date":"2025-10-30","location":"Barcelona, Spain"},"has_accepted_license":"1","article_processing_charge":"No","year":"2026","publication_status":"published","intvolume":"        80","ddc":["020"]}]