[{"OA_place":"publisher","year":"2025","date_updated":"2026-02-19T08:18:24Z","_id":"21325","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"eissn":["2640-3498"]},"month":"11","acknowledgement":"H.A.G., M.E.I., X.Z., and S.O. were supported in part by the NSF grants CCF2046816, CCF-2403075, CCF-2008020, and the Office of Naval Research grant N000142412289.\r\nM. M. is funded by the European Union (ERC, INF2 , project number 101161364). Views and opinions expressed are, however, those of the author(s) only and do not necessarily\r\nreflect those of the European Union or the European Research Council Executive Agency. Neither the European Union nor the granting authority can be held responsible for them. M.S. is supported by the Packard Fellowship in Science and Engineering, a Sloan Research Fellowship in Mathematics, an NSF-CAREER under award #1846369, DARPA FastNICS program, and NSF-CIF awards #1813877 and #2008443, and NIH DP2LM014564-01. The authors also\r\nacknowledge further support from Open Philanthropy, OpenAI, Amazon Research, Google Research, and Microsoft Research.","publication":"Proceedings of the 42nd International Conference on Machine Learning","intvolume":"       267","quality_controlled":"1","language":[{"iso":"eng"}],"type":"conference","citation":{"ista":"Gozeten HA, Ildiz ME, Zhang X, Soltanolkotabi M, Mondelli M, Oymak S. 2025. Test-time training provably improves transformers as in-context learners. Proceedings of the 42nd International Conference on Machine Learning. ICML: International Conference on Machine Learning, PMLR, vol. 267, 20266–20295.","apa":"Gozeten, H. A., Ildiz, M. E., Zhang, X., Soltanolkotabi, M., Mondelli, M., &#38; Oymak, S. (2025). Test-time training provably improves transformers as in-context learners. In <i>Proceedings of the 42nd International Conference on Machine Learning</i> (Vol. 267, pp. 20266–20295). Vancouver, Canada: ML Research Press.","short":"H.A. Gozeten, M.E. Ildiz, X. Zhang, M. Soltanolkotabi, M. Mondelli, S. Oymak, in:, Proceedings of the 42nd International Conference on Machine Learning, ML Research Press, 2025, pp. 20266–20295.","ama":"Gozeten HA, Ildiz ME, Zhang X, Soltanolkotabi M, Mondelli M, Oymak S. Test-time training provably improves transformers as in-context learners. In: <i>Proceedings of the 42nd International Conference on Machine Learning</i>. Vol 267. ML Research Press; 2025:20266-20295.","mla":"Gozeten, Halil Alperen, et al. “Test-Time Training Provably Improves Transformers as in-Context Learners.” <i>Proceedings of the 42nd International Conference on Machine Learning</i>, vol. 267, ML Research Press, 2025, pp. 20266–95.","chicago":"Gozeten, Halil Alperen, Muhammed Emrullah Ildiz, Xuechen Zhang, Mahdi Soltanolkotabi, Marco Mondelli, and Samet Oymak. “Test-Time Training Provably Improves Transformers as in-Context Learners.” In <i>Proceedings of the 42nd International Conference on Machine Learning</i>, 267:20266–95. ML Research Press, 2025.","ieee":"H. A. Gozeten, M. E. Ildiz, X. Zhang, M. Soltanolkotabi, M. Mondelli, and S. Oymak, “Test-time training provably improves transformers as in-context learners,” in <i>Proceedings of the 42nd International Conference on Machine Learning</i>, Vancouver, Canada, 2025, vol. 267, pp. 20266–20295."},"volume":267,"ddc":["000"],"day":"30","date_published":"2025-11-30T00:00:00Z","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"conference":{"name":"ICML: International Conference on Machine Learning","end_date":"2025-07-19","location":"Vancouver, Canada","start_date":"2025-07-13"},"oa":1,"status":"public","has_accepted_license":"1","department":[{"_id":"MaMo"}],"publisher":"ML Research Press","alternative_title":["PMLR"],"author":[{"full_name":"Gozeten, Halil Alperen","last_name":"Gozeten","first_name":"Halil Alperen"},{"first_name":"Muhammed Emrullah","last_name":"Ildiz","full_name":"Ildiz, Muhammed Emrullah"},{"last_name":"Zhang","first_name":"Xuechen","full_name":"Zhang, Xuechen"},{"last_name":"Soltanolkotabi","first_name":"Mahdi","full_name":"Soltanolkotabi, Mahdi"},{"first_name":"Marco","id":"27EB676C-8706-11E9-9510-7717E6697425","last_name":"Mondelli","full_name":"Mondelli, Marco","orcid":"0000-0002-3242-7020"},{"full_name":"Oymak, Samet","first_name":"Samet","last_name":"Oymak"}],"project":[{"_id":"911e6d1f-16d5-11f0-9cad-c5c68c6a1cdf","grant_number":"101161364","name":"Inference in High Dimensions: Light-speed Algorithms and Information Limits"}],"file_date_updated":"2026-02-19T08:15:48Z","page":"20266-20295","abstract":[{"text":"Test-time training (TTT) methods explicitly update the weights of a model to adapt to the specific test instance, and they have found success in a variety of settings, including most recently language modeling and reasoning. To demystify this success, we investigate a gradient-based TTT algorithm for in-context learning, where we train a transformer model on the in-context demonstrations provided in the test prompt. Specifically, we provide a comprehensive theoretical characterization of linear transformers when the update rule is a single gradient step. Our theory (i) delineates the role of alignment between pretraining distribution and target task, (ii) demystifies how TTT can alleviate distribution shift, and (iii) quantifies the sample complexity of TTT including how it can significantly reduce the eventual sample size required for in-context learning. As our empirical contribution, we study the benefits of TTT for TabPFN, a tabular foundation model. In line with our theory, we demonstrate that TTT significantly reduces the required sample size for tabular classification (3 to 5 times fewer) unlocking substantial inference efficiency with a negligible training cost.","lang":"eng"}],"external_id":{"pmid":["41321376"]},"file":[{"file_id":"21336","file_size":471176,"date_updated":"2026-02-19T08:15:48Z","access_level":"open_access","date_created":"2026-02-19T08:15:48Z","success":1,"checksum":"f774f8619a0d72f3975d9cb23942a1e9","content_type":"application/pdf","file_name":"2025_ICML_Gozeten.pdf","relation":"main_file","creator":"dernst"}],"pmid":1,"license":"https://creativecommons.org/licenses/by/4.0/","article_processing_charge":"No","title":"Test-time training provably improves transformers as in-context learners","publication_status":"published","oa_version":"Published Version","date_created":"2026-02-18T12:00:44Z","OA_type":"gold"},{"alternative_title":["PMLR"],"corr_author":"1","author":[{"full_name":"Wu, Diyuan","last_name":"Wu","id":"1a5914c2-896a-11ed-bdf8-fb80621a0635","first_name":"Diyuan"},{"full_name":"Mondelli, Marco","orcid":"0000-0002-3242-7020","first_name":"Marco","id":"27EB676C-8706-11E9-9510-7717E6697425","last_name":"Mondelli"}],"publisher":"ML Research Press","department":[{"_id":"MaMo"}],"status":"public","has_accepted_license":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"conference":{"start_date":"2025-07-13","location":"Vancouver, Canada","end_date":"2025-07-19","name":"ICML: International Conference on Machine Learning"},"oa":1,"OA_type":"gold","arxiv":1,"article_processing_charge":"No","title":"Neural collapse beyond the unconstrained features model: Landscape, dynamics, and generalization in the mean-field regime","publication_status":"published","oa_version":"Published Version","date_created":"2026-02-18T12:02:45Z","page":"67499-67536","external_id":{"arxiv":["2501.19104"]},"abstract":[{"text":"Neural Collapse is a phenomenon where the last-layer representations of a well-trained neural network converge to a highly structured geometry. In this paper, we focus on its first (and most basic) property, known as NC1: the within-class variability vanishes. While prior theoretical studies establish the occurrence of NC1 via the data-agnostic unconstrained features model, our work adopts a data-specific perspective, analyzing NC1 in a three-layer neural network, with the first two layers operating in the mean-field regime and followed by a linear layer. In particular, we establish a fundamental connection between NC1 and the loss landscape: we prove that points with small empirical loss and gradient norm (thus, close to being stationary) approximately satisfy NC1, and the closeness to NC1 is controlled by the residual loss and gradient norm. We then show that (i) gradient flow on the mean squared error converges to NC1 solutions with small empirical loss, and (ii) for well-separated data distributions, both NC1 and vanishing test loss are achieved simultaneously. This aligns with the empirical observation that NC1 emerges during training while models attain near-zero test error. Overall, our results demonstrate that NC1 arises from gradient training due to the properties of the loss landscape, and they show the co-occurrence of NC1 and small test error for certain data distributions.","lang":"eng"}],"file":[{"relation":"main_file","file_name":"2025_ICML_Wu.pdf","content_type":"application/pdf","creator":"dernst","checksum":"c5ce8b1c83e33dc3a11122f4910deb67","access_level":"open_access","success":1,"date_created":"2026-02-19T08:28:22Z","date_updated":"2026-02-19T08:28:22Z","file_size":3994385,"file_id":"21337"}],"file_date_updated":"2026-02-19T08:28:22Z","month":"07","publication_identifier":{"eissn":["2640-3498"]},"date_updated":"2026-02-19T08:30:42Z","_id":"21326","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","OA_place":"publisher","year":"2025","day":"30","date_published":"2025-07-30T00:00:00Z","citation":{"ieee":"D. Wu and M. Mondelli, “Neural collapse beyond the unconstrained features model: Landscape, dynamics, and generalization in the mean-field regime,” in <i>Proceedings of the 42nd International Conference on Machine Learning</i>, Vancouver, Canada, 2025, vol. 267, pp. 67499–67536.","chicago":"Wu, Diyuan, and Marco Mondelli. “Neural Collapse beyond the Unconstrained Features Model: Landscape, Dynamics, and Generalization in the Mean-Field Regime.” In <i>Proceedings of the 42nd International Conference on Machine Learning</i>, 267:67499–536. ML Research Press, 2025.","mla":"Wu, Diyuan, and Marco Mondelli. “Neural Collapse beyond the Unconstrained Features Model: Landscape, Dynamics, and Generalization in the Mean-Field Regime.” <i>Proceedings of the 42nd International Conference on Machine Learning</i>, vol. 267, ML Research Press, 2025, pp. 67499–536.","short":"D. Wu, M. Mondelli, in:, Proceedings of the 42nd International Conference on Machine Learning, ML Research Press, 2025, pp. 67499–67536.","ama":"Wu D, Mondelli M. Neural collapse beyond the unconstrained features model: Landscape, dynamics, and generalization in the mean-field regime. In: <i>Proceedings of the 42nd International Conference on Machine Learning</i>. Vol 267. ML Research Press; 2025:67499-67536.","apa":"Wu, D., &#38; Mondelli, M. (2025). Neural collapse beyond the unconstrained features model: Landscape, dynamics, and generalization in the mean-field regime. In <i>Proceedings of the 42nd International Conference on Machine Learning</i> (Vol. 267, pp. 67499–67536). Vancouver, Canada: ML Research Press.","ista":"Wu D, Mondelli M. 2025. Neural collapse beyond the unconstrained features model: Landscape, dynamics, and generalization in the mean-field regime. Proceedings of the 42nd International Conference on Machine Learning. ICML: International Conference on Machine Learning, PMLR, vol. 267, 67499–67536."},"type":"conference","volume":267,"ddc":["000"],"publication":"Proceedings of the 42nd International Conference on Machine Learning","acknowledgement":"This research was funded in whole or in part by the Austrian Science Fund (FWF) 10.55776/COE12. For the purpose of open access, the authors have applied a CC BY public\r\ncopyright license to any Author Accepted Manuscript version arising from this submission. The authors would like to thank Peter Sukenık for general helpful discussions and for pointing out that all the stationary points are approximately proportional in the case without entropic regularization. ","intvolume":"       267","quality_controlled":"1","language":[{"iso":"eng"}]},{"file":[{"date_created":"2026-02-19T08:56:10Z","success":1,"access_level":"open_access","checksum":"f33230a6d59b7978d4cd72795e4e9059","creator":"dernst","relation":"main_file","file_name":"2025_ICML_Maddipatla.pdf","content_type":"application/pdf","file_id":"21338","file_size":1924177,"date_updated":"2026-02-19T08:56:10Z"}],"abstract":[{"lang":"eng","text":"Proteins exist as a dynamic ensemble of multiple conformations, and these motions are often crucial for their functions. However, current structure prediction methods predominantly yield a single conformation, overlooking the conformational heterogeneity revealed by diverse experimental modalities. Here, we present a framework for building experiment-grounded protein structure generative models that infer conformational ensembles consistent with measured experimental data. The key idea is to treat stateof-the-art protein structure predictors (e.g., AlphaFold3) as sequence-conditioned structural priors, and cast ensemble modeling as posterior inference of protein structures given experimental measurements. Through extensive real-data experiments, we demonstrate the generality of our method to incorporate a variety of experimental measurements. In particular, our framework uncovers previously unmodeled conformational heterogeneity from crystallographic densities, and generates high-accuracy NMR ensembles orders of magnitude faster than the status quo. Notably, we demonstrate that our ensembles outperform AlphaFold3 (Abramson et al., 2024) and sometimes better fit experimental data than publicly deposited structures to the Protein Data Bank (PDB, Burley et al. (2017)). We believe that this approach will unlock building predictive models that fully embrace experimentally observed conformational diversity."}],"external_id":{"arxiv":["2502.09372"]},"page":"42366 - 42393","file_date_updated":"2026-02-19T08:56:10Z","OA_type":"gold","publication_status":"published","date_created":"2026-02-18T12:11:17Z","oa_version":"Published Version","title":"Inverse problems with experiment-guided AlphaFold","article_processing_charge":"No","arxiv":1,"has_accepted_license":"1","status":"public","oa":1,"conference":{"location":"Vancouver, Canada","start_date":"2025-07-13","end_date":"2025-07-19","name":"ICML: International Conference on Machine Learning"},"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"project":[{"_id":"eb9c82eb-77a9-11ec-83b8-aadd536561cf","name":"AlloSpace. The emergence and mechanisms of allostery","grant_number":"I05812"},{"_id":"bdb9578d-d553-11ed-ba76-ed5d39fce6f0","name":"Structure and mechanism of the mitochondrial MIM insertase","grant_number":"I06223"}],"corr_author":"1","author":[{"last_name":"Maddipatla","id":"e957f5e5-91c9-11f0-a95f-e090f66ecb4d","first_name":"Sai A","full_name":"Maddipatla, Sai A"},{"full_name":"Sellam, Nadav E","first_name":"Nadav E","id":"ef280fe0-91c9-11f0-a95f-8dea3f5bc513","last_name":"Sellam"},{"full_name":"Bojan, Meital I","last_name":"Bojan","id":"11d88cf5-91ca-11f0-a95f-edf9f08f47b7","first_name":"Meital I"},{"full_name":"Vedula, Sanketh","last_name":"Vedula","first_name":"Sanketh","id":"94f2fe44-70fa-11f0-b76b-92922c09452b"},{"last_name":"Schanda","first_name":"Paul","id":"7B541462-FAF6-11E9-A490-E8DFE5697425","full_name":"Schanda, Paul","orcid":"0000-0002-9350-7606"},{"first_name":"Ailie","last_name":"Marx","full_name":"Marx, Ailie"},{"full_name":"Bronstein, Alexander","orcid":"0000-0001-9699-8730","last_name":"Bronstein","first_name":"Alexander","id":"58f3726e-7cba-11ef-ad8b-e6e8cb3904e6"}],"alternative_title":["PMLR"],"publisher":"ML Research Press","department":[{"_id":"PaSc"},{"_id":"AlBr"},{"_id":"GradSch"}],"ddc":["000","540"],"volume":267,"type":"conference","citation":{"chicago":"Maddipatla, Sai A, Nadav E Sellam, Meital I Bojan, Sanketh Vedula, Paul Schanda, Ailie Marx, and Alex M. Bronstein. “Inverse Problems with Experiment-Guided AlphaFold.” In <i>Proceedings of the 42nd International Conference on Machine Learning</i>, 267:42366–93. ML Research Press, 2025.","mla":"Maddipatla, Sai A., et al. “Inverse Problems with Experiment-Guided AlphaFold.” <i>Proceedings of the 42nd International Conference on Machine Learning</i>, vol. 267, ML Research Press, 2025, pp. 42366–93.","ama":"Maddipatla SA, Sellam NE, Bojan MI, et al. Inverse problems with experiment-guided AlphaFold. In: <i>Proceedings of the 42nd International Conference on Machine Learning</i>. Vol 267. ML Research Press; 2025:42366-42393.","short":"S.A. Maddipatla, N.E. Sellam, M.I. Bojan, S. Vedula, P. Schanda, A. Marx, A.M. Bronstein, in:, Proceedings of the 42nd International Conference on Machine Learning, ML Research Press, 2025, pp. 42366–42393.","ieee":"S. A. Maddipatla <i>et al.</i>, “Inverse problems with experiment-guided AlphaFold,” in <i>Proceedings of the 42nd International Conference on Machine Learning</i>, Vancouver, Canada, 2025, vol. 267, pp. 42366–42393.","ista":"Maddipatla SA, Sellam NE, Bojan MI, Vedula S, Schanda P, Marx A, Bronstein AM. 2025. Inverse problems with experiment-guided AlphaFold. Proceedings of the 42nd International Conference on Machine Learning. ICML: International Conference on Machine Learning, PMLR, vol. 267, 42366–42393.","apa":"Maddipatla, S. A., Sellam, N. E., Bojan, M. I., Vedula, S., Schanda, P., Marx, A., &#38; Bronstein, A. M. (2025). Inverse problems with experiment-guided AlphaFold. In <i>Proceedings of the 42nd International Conference on Machine Learning</i> (Vol. 267, pp. 42366–42393). Vancouver, Canada: ML Research Press."},"language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":"       267","publication":"Proceedings of the 42nd International Conference on Machine Learning","acknowledgement":"This work was supported by the Israeli Science Foundation (ISF) grant number 1834/24. We acknowledge support from the Austrian Science Fund (FWF, grant numbers I5812-B and I6223) and the financial support of the Helmsley Fellowships Program for Sustainability and Health. This research uses resources of the Institute of Science and Technology Austria’s scientific computing cluster. ","date_published":"2025-07-30T00:00:00Z","day":"30","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21327","date_updated":"2026-02-19T08:56:43Z","year":"2025","OA_place":"publisher","month":"07","acknowledged_ssus":[{"_id":"ScienComp"}],"publication_identifier":{"eissn":["2640-3498"]}},{"alternative_title":["PMLR"],"project":[{"_id":"911e6d1f-16d5-11f0-9cad-c5c68c6a1cdf","grant_number":"101161364","name":"Inference in High Dimensions: Light-speed Algorithms and Information Limits"}],"corr_author":"1","author":[{"last_name":"Kovačević","first_name":"Filip","id":"d0258e7b-50b8-11ef-ad56-8b9f537b6b1b","full_name":"Kovačević, Filip"},{"first_name":"Zhang","last_name":"Yihan","full_name":"Yihan, Zhang"},{"first_name":"Marco","id":"27EB676C-8706-11E9-9510-7717E6697425","last_name":"Mondelli","orcid":"0000-0002-3242-7020","full_name":"Mondelli, Marco"}],"department":[{"_id":"MaMo"}],"publisher":"ML Research Press","has_accepted_license":"1","status":"public","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"oa":1,"scopus_import":"1","conference":{"end_date":"2025-07-04","name":"COLT: Conference on Learning Theory","start_date":"2025-06-30","location":"Lyon, France"},"OA_type":"gold","article_processing_charge":"No","title":"Spectral estimators for multi-index models: Precise asymptotics and optimal weak recovery","arxiv":1,"oa_version":"Published Version","date_created":"2026-02-18T12:12:47Z","publication_status":"published","external_id":{"arxiv":["2502.01583"]},"abstract":[{"lang":"eng","text":"Multi-index models provide a popular framework to investigate the learnability of functions with low-dimensional structure and, also due to their connections with neural networks, they have been object of recent intensive study. In this paper, we focus on recovering the subspace spanned by the signals via spectral estimators – a family of methods routinely used in practice, often as a warm-start for iterative algorithms. Our main technical contribution is a precise asymptotic characterization of the performance of spectral methods, when sample size and input dimension grow proportionally and the dimension p of the space to recover is fixed. Specifically, we locate the top-p eigenvalues of the spectral matrix and establish the overlaps between the corresponding eigenvectors (which give the spectral estimators) and a basis of the signal subspace. Our analysis unveils a phase transition phenomenon in which, as the sample complexity grows, eigenvalues escape from the bulk of the spectrum and, when that happens, eigenvectors recover directions of the desired subspace. The precise characterization we put forward enables the optimization of the data preprocessing, thus allowing to identify the spectral estimator that requires the minimal sample size for weak recovery."}],"page":"3354-3404","file":[{"file_size":844611,"file_id":"21339","date_updated":"2026-02-19T09:03:43Z","checksum":"19aa70ab4f57fb9067b6ebb99a5fd6f0","success":1,"date_created":"2026-02-19T09:03:43Z","access_level":"open_access","creator":"dernst","file_name":"2025_LearningTheory_Kovacevic.pdf","content_type":"application/pdf","relation":"main_file"}],"file_date_updated":"2026-02-19T09:03:43Z","month":"07","publication_identifier":{"eissn":["2640-3498"]},"date_updated":"2026-02-19T09:03:53Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21328","OA_place":"publisher","year":"2025","day":"01","date_published":"2025-07-01T00:00:00Z","type":"conference","citation":{"apa":"Kovačević, F., Yihan, Z., &#38; Mondelli, M. (2025). Spectral estimators for multi-index models: Precise asymptotics and optimal weak recovery. In <i>Proceedings of 38th Conference on Learning Theory</i> (Vol. 291, pp. 3354–3404). Lyon, France: ML Research Press.","ista":"Kovačević F, Yihan Z, Mondelli M. 2025. Spectral estimators for multi-index models: Precise asymptotics and optimal weak recovery. Proceedings of 38th Conference on Learning Theory. COLT: Conference on Learning Theory, PMLR, vol. 291, 3354–3404.","ieee":"F. Kovačević, Z. Yihan, and M. Mondelli, “Spectral estimators for multi-index models: Precise asymptotics and optimal weak recovery,” in <i>Proceedings of 38th Conference on Learning Theory</i>, Lyon, France, 2025, vol. 291, pp. 3354–3404.","short":"F. Kovačević, Z. Yihan, M. Mondelli, in:, Proceedings of 38th Conference on Learning Theory, ML Research Press, 2025, pp. 3354–3404.","ama":"Kovačević F, Yihan Z, Mondelli M. Spectral estimators for multi-index models: Precise asymptotics and optimal weak recovery. In: <i>Proceedings of 38th Conference on Learning Theory</i>. Vol 291. ML Research Press; 2025:3354-3404.","chicago":"Kovačević, Filip, Zhang Yihan, and Marco Mondelli. “Spectral Estimators for Multi-Index Models: Precise Asymptotics and Optimal Weak Recovery.” In <i>Proceedings of 38th Conference on Learning Theory</i>, 291:3354–3404. ML Research Press, 2025.","mla":"Kovačević, Filip, et al. “Spectral Estimators for Multi-Index Models: Precise Asymptotics and Optimal Weak Recovery.” <i>Proceedings of 38th Conference on Learning Theory</i>, vol. 291, ML Research Press, 2025, pp. 3354–404."},"ddc":["000"],"volume":291,"intvolume":"       291","acknowledgement":"This work was done when Y. Z. was at the Institute of Science and Technology Austria. Y. Z. and\r\nM. M. are funded by the European Union (ERC, INF2, project number 101161364). Views and\r\nopinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council Executive Agency. Neither the European Union nor the granting authority can be held responsible for them. The authors would like to acknowledge (in alphabetical order) discussions with Yatin Dandi, Leonardo Defilippis and Bruno Loureiro concerning their parallel work (Defilippis et al., 2025).","publication":"Proceedings of 38th Conference on Learning Theory","language":[{"iso":"eng"}],"quality_controlled":"1"},{"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"scopus_import":"1","conference":{"name":"DISC: Symposium on Distributed Computing","end_date":"2025-10-31","location":"Berlin, Germany","start_date":"2025-10-27"},"oa":1,"status":"public","has_accepted_license":"1","department":[{"_id":"KrCh"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","alternative_title":["LIPIcs"],"author":[{"last_name":"Chatterjee","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"full_name":"Křišťan, Jan Matyáš","last_name":"Křišťan","first_name":"Jan Matyáš"},{"last_name":"Schmid","first_name":"Stefan","full_name":"Schmid, Stefan"},{"full_name":"Svoboda, Jakub","orcid":"0000-0002-1419-3267","last_name":"Svoboda","first_name":"Jakub","id":"130759D2-D7DD-11E9-87D2-DE0DE6697425"},{"first_name":"Michelle X","id":"2D82B818-F248-11E8-B48F-1D18A9856A87","last_name":"Yeo","full_name":"Yeo, Michelle X","orcid":"0009-0001-3676-4809"}],"project":[{"name":"Formal Methods for Stochastic Models: Algorithms and Applications","grant_number":"863818","call_identifier":"H2020","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E"}],"file_date_updated":"2026-03-09T11:51:59Z","abstract":[{"text":"Payment channel networks (PCNs) are a promising technology that alleviates blockchain scalability by shifting the transaction load from the blockchain to the PCN. Nevertheless, the network topology has to be carefully designed to maximise the transaction throughput in PCNs. Additionally, users in PCNs also have to make optimal decisions on which transactions to forward and which to reject to prolong the lifetime of their channels. In this work, we consider an input sequence of transactions over p parties. Each transaction consists of a transaction size, source, and target, and can be either accepted or rejected (entailing a cost). The goal is to design a PCN topology among the p cooperating parties, along with the channel capacities, and then output a decision for each transaction in the sequence to minimise the cost of creating and augmenting channels, as well as the cost of rejecting transactions. Our main contribution is an 𝒪(p) approximation algorithm for the problem with p parties. We further show that with some assumptions on the distribution of transactions, we can reduce the approximation ratio to 𝒪(√p). We complement our theoretical analysis with an empirical study of our assumptions and approach in the context of the Lightning Network.","lang":"eng"}],"external_id":{"arxiv":["2508.14524"]},"file":[{"date_updated":"2026-03-09T11:51:59Z","file_size":1130069,"file_id":"21418","creator":"dernst","relation":"main_file","content_type":"application/pdf","file_name":"2025_DISC_Chatterjee.pdf","checksum":"8e3d1594365df60163d9df22158a37b1","success":1,"date_created":"2026-03-09T11:51:59Z","access_level":"open_access"}],"arxiv":1,"title":"Boosting payment channel network liquidity with topology optimization and transaction selection","article_processing_charge":"No","publication_status":"published","oa_version":"Published Version","date_created":"2026-03-08T23:01:46Z","OA_type":"gold","OA_place":"publisher","year":"2025","date_updated":"2026-03-09T11:52:58Z","_id":"21412","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"issn":["1868-8969"],"isbn":["9783959774024"]},"ec_funded":1,"month":"10","publication":"39th International Symposium on Distributed Computing","acknowledgement":"Chatterjee, Krishnendu: European Research Council CoG 863818 (ForM-SMArt) and Austrian Science Fund 10.55776/COE12.\r\nKřišťan, Jan Matyáš: Czech Science Foundation Grant no. 24-12046S.\r\nSchmid, Stefan: German Research Foundation (DFG) project ReNO (SPP 2378) from 2023-2027.\r\nSvoboda, Jakub: European Research Council CoG 863818 (ForM-SMArt) and Austrian Science Fund 10.55776/COE12.\r\nYeo, Michelle: MOE-T2EP20122-0014 (Data-Driven Distributed Algorithms).","intvolume":"       356","quality_controlled":"1","language":[{"iso":"eng"}],"citation":{"ista":"Chatterjee K, Křišťan JM, Schmid S, Svoboda J, Yeo MX. 2025. Boosting payment channel network liquidity with topology optimization and transaction selection. 39th International Symposium on Distributed Computing. DISC: Symposium on Distributed Computing, LIPIcs, vol. 356, 23.","apa":"Chatterjee, K., Křišťan, J. M., Schmid, S., Svoboda, J., &#38; Yeo, M. X. (2025). Boosting payment channel network liquidity with topology optimization and transaction selection. In <i>39th International Symposium on Distributed Computing</i> (Vol. 356). Berlin, Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.DISC.2025.23\">https://doi.org/10.4230/LIPIcs.DISC.2025.23</a>","mla":"Chatterjee, Krishnendu, et al. “Boosting Payment Channel Network Liquidity with Topology Optimization and Transaction Selection.” <i>39th International Symposium on Distributed Computing</i>, vol. 356, 23, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2025, doi:<a href=\"https://doi.org/10.4230/LIPIcs.DISC.2025.23\">10.4230/LIPIcs.DISC.2025.23</a>.","chicago":"Chatterjee, Krishnendu, Jan Matyáš Křišťan, Stefan Schmid, Jakub Svoboda, and Michelle X Yeo. “Boosting Payment Channel Network Liquidity with Topology Optimization and Transaction Selection.” In <i>39th International Symposium on Distributed Computing</i>, Vol. 356. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2025. <a href=\"https://doi.org/10.4230/LIPIcs.DISC.2025.23\">https://doi.org/10.4230/LIPIcs.DISC.2025.23</a>.","ama":"Chatterjee K, Křišťan JM, Schmid S, Svoboda J, Yeo MX. Boosting payment channel network liquidity with topology optimization and transaction selection. In: <i>39th International Symposium on Distributed Computing</i>. Vol 356. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2025. doi:<a href=\"https://doi.org/10.4230/LIPIcs.DISC.2025.23\">10.4230/LIPIcs.DISC.2025.23</a>","short":"K. Chatterjee, J.M. Křišťan, S. Schmid, J. Svoboda, M.X. Yeo, in:, 39th International Symposium on Distributed Computing, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2025.","ieee":"K. Chatterjee, J. M. Křišťan, S. Schmid, J. Svoboda, and M. X. Yeo, “Boosting payment channel network liquidity with topology optimization and transaction selection,” in <i>39th International Symposium on Distributed Computing</i>, Berlin, Germany, 2025, vol. 356."},"type":"conference","volume":356,"ddc":["000"],"day":"22","main_file_link":[{"url":"https://eprint.iacr.org/2025/1484.pdf","open_access":"1"}],"date_published":"2025-10-22T00:00:00Z","article_number":"23","doi":"10.4230/LIPIcs.DISC.2025.23"},{"publisher":"TheoretiCS Foundation","department":[{"_id":"KrCh"}],"project":[{"_id":"25EE3708-B435-11E9-9278-68D0E5697425","grant_number":"267989","name":"Quantitative Reactive Modeling","call_identifier":"FP7"},{"_id":"2581B60A-B435-11E9-9278-68D0E5697425","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307","call_identifier":"FP7"},{"_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020","name":"Formal Methods for Stochastic Models: Algorithms and Applications","grant_number":"863818"},{"grant_number":"S11402-N23","name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425"},{"_id":"2584A770-B435-11E9-9278-68D0E5697425","grant_number":"P 23499-N23","name":"Modern Graph Algorithmic Techniques in Formal Verification","call_identifier":"FWF"}],"author":[{"first_name":"Tomáš","last_name":"Brázdil","full_name":"Brázdil, Tomáš"},{"first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","last_name":"Chatterjee","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"full_name":"Chmelik, Martin","last_name":"Chmelik","id":"3624234E-F248-11E8-B48F-1D18A9856A87","first_name":"Martin"},{"last_name":"Forejt","first_name":"Vojtěch","full_name":"Forejt, Vojtěch"},{"orcid":"0000-0002-8122-2881","full_name":"Kretinsky, Jan","last_name":"Kretinsky","id":"44CEF464-F248-11E8-B48F-1D18A9856A87","first_name":"Jan"},{"last_name":"Kwiatkowska","first_name":"Marta","full_name":"Kwiatkowska, Marta"},{"orcid":"0000-0002-1712-2165","full_name":"Meggendorfer, Tobias","last_name":"Meggendorfer","first_name":"Tobias","id":"b21b0c15-30a2-11eb-80dc-f13ca25802e1"},{"full_name":"Parker, David","last_name":"Parker","first_name":"David"},{"last_name":"Ujma","first_name":"Mateusz","full_name":"Ujma, Mateusz"}],"oa":1,"scopus_import":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"has_accepted_license":"1","status":"public","date_created":"2026-03-08T23:01:46Z","publication_status":"published","oa_version":"Published Version","title":"Learning algorithms for verification of Markov decision processes","article_processing_charge":"Yes","arxiv":1,"OA_type":"gold","article_type":"original","file_date_updated":"2026-03-09T11:39:59Z","file":[{"file_id":"21417","file_size":861607,"date_updated":"2026-03-09T11:39:59Z","success":1,"date_created":"2026-03-09T11:39:59Z","access_level":"open_access","checksum":"2ccf563ae577ee08d82baf752292ca7b","creator":"dernst","content_type":"application/pdf","relation":"main_file","file_name":"2026_TheoretiCS_Brazdil.pdf"}],"external_id":{"arxiv":["2403.09184"]},"abstract":[{"text":"We present a general framework for applying learning algorithms and heuristical guidance to the verification of Markov decision processes (MDPs).\r\nThe primary goal of our techniques is to improve performance by avoiding an exhaustive exploration of the state space, instead focussing on particularly relevant areas of the system, guided by heuristics. Our work builds on the previous results of Br{á}zdil et al., significantly extending it as well as refining several details and fixing errors.\r\nThe presented framework focuses on probabilistic reachability, which is a core problem in verification, and is instantiated in two distinct scenarios.\r\nThe first assumes that full knowledge of the MDP is available, in particular precise transition probabilities. It performs a heuristic-driven partial exploration of the model, yielding precise lower and upper bounds on the required probability. The second tackles the case where we may only sample the MDP without knowing the exact transition dynamics. Here, we obtain probabilistic guarantees, again in terms of both the lower and upper bounds, which provides efficient stopping criteria for the approximation. In particular, the latter is an extension of statistical model-checking (SMC) for unbounded properties in MDPs. In contrast to other related approaches, we do not restrict our attention to time-bounded (finite-horizon) or discounted properties, nor assume any particular structural properties of the MDP.","lang":"eng"}],"ec_funded":1,"publication_identifier":{"eissn":["2751-4838"]},"month":"04","year":"2025","PlanS_conform":"1","OA_place":"publisher","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21413","date_updated":"2026-03-09T11:43:38Z","article_number":"10","date_published":"2025-04-01T00:00:00Z","day":"01","doi":"10.46298/theoretics.25.10","DOAJ_listed":"1","language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":"         4","acknowledgement":"This research was funded in part by the European Research Council (ERC) under grant agreement AdG-267989 (QUAREM)*, AdG-246967 (VERIWARE)*, StG-279307 (Graph Games)*\r\n, CoG-863818 (ForM-SMArt), and AdG-834115 (FUN2MODEL), by the EU FP7 project HIERATIC*, by the German Research Foundation (DFG) project 427755713 (GOPro), by the Austrian Science Fund (FWF) projects S11402-N23 (RiSE)* , S11407-N23 (RiSE)*\r\n, and P23499-N23* , by the Czech Science Foundation grant No P202/12/P612* and GA23-06963S, by the MUNI Award in Science and Humanities (MUNI/I/1757/2021) of the Grant\r\nAgency of Masaryk University, by EPSRC project EP/K038575/1*, and by the Microsoft faculty fellows award*. A preliminary version of this article appeared at ATVA 2014 [33]. The * indicates funding that supported that version.","publication":"TheoretiCS","ddc":["000"],"volume":4,"citation":{"short":"T. Brázdil, K. Chatterjee, M. Chmelik, V. Forejt, J. Kretinsky, M. Kwiatkowska, T. Meggendorfer, D. Parker, M. Ujma, TheoretiCS 4 (2025).","ama":"Brázdil T, Chatterjee K, Chmelik M, et al. Learning algorithms for verification of Markov decision processes. <i>TheoretiCS</i>. 2025;4. doi:<a href=\"https://doi.org/10.46298/theoretics.25.10\">10.46298/theoretics.25.10</a>","mla":"Brázdil, Tomáš, et al. “Learning Algorithms for Verification of Markov Decision Processes.” <i>TheoretiCS</i>, vol. 4, 10, TheoretiCS Foundation, 2025, doi:<a href=\"https://doi.org/10.46298/theoretics.25.10\">10.46298/theoretics.25.10</a>.","chicago":"Brázdil, Tomáš, Krishnendu Chatterjee, Martin Chmelik, Vojtěch Forejt, Jan Kretinsky, Marta Kwiatkowska, Tobias Meggendorfer, David Parker, and Mateusz Ujma. “Learning Algorithms for Verification of Markov Decision Processes.” <i>TheoretiCS</i>. TheoretiCS Foundation, 2025. <a href=\"https://doi.org/10.46298/theoretics.25.10\">https://doi.org/10.46298/theoretics.25.10</a>.","ieee":"T. Brázdil <i>et al.</i>, “Learning algorithms for verification of Markov decision processes,” <i>TheoretiCS</i>, vol. 4. TheoretiCS Foundation, 2025.","ista":"Brázdil T, Chatterjee K, Chmelik M, Forejt V, Kretinsky J, Kwiatkowska M, Meggendorfer T, Parker D, Ujma M. 2025. Learning algorithms for verification of Markov decision processes. TheoretiCS. 4, 10.","apa":"Brázdil, T., Chatterjee, K., Chmelik, M., Forejt, V., Kretinsky, J., Kwiatkowska, M., … Ujma, M. (2025). Learning algorithms for verification of Markov decision processes. <i>TheoretiCS</i>. TheoretiCS Foundation. <a href=\"https://doi.org/10.46298/theoretics.25.10\">https://doi.org/10.46298/theoretics.25.10</a>"},"type":"journal_article"},{"month":"10","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"date_updated":"2026-03-16T08:22:16Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21431","OA_place":"repository","year":"2025","doi":"10.1103/33ns-8gwj","day":"06","article_number":"134407","date_published":"2025-10-06T00:00:00Z","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2310.15631","open_access":"1"}],"citation":{"apa":"Sunko, V., Liu, C., Vila, M., Na, I., Tang, Y., Kozii, V., … Orenstein, J. (2025). Linear magnetoconductivity as a probe of time-reversal symmetry breaking. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/33ns-8gwj\">https://doi.org/10.1103/33ns-8gwj</a>","ista":"Sunko V, Liu C, Vila M, Na I, Tang Y, Kozii V, Griffin SM, Moore JE, Orenstein J. 2025. Linear magnetoconductivity as a probe of time-reversal symmetry breaking. Physical Review B. 112(13), 134407.","ieee":"V. Sunko <i>et al.</i>, “Linear magnetoconductivity as a probe of time-reversal symmetry breaking,” <i>Physical Review B</i>, vol. 112, no. 13. American Physical Society, 2025.","short":"V. Sunko, C. Liu, M. Vila, I. Na, Y. Tang, V. Kozii, S.M. Griffin, J.E. Moore, J. Orenstein, Physical Review B 112 (2025).","ama":"Sunko V, Liu C, Vila M, et al. Linear magnetoconductivity as a probe of time-reversal symmetry breaking. <i>Physical Review B</i>. 2025;112(13). doi:<a href=\"https://doi.org/10.1103/33ns-8gwj\">10.1103/33ns-8gwj</a>","mla":"Sunko, Veronika, et al. “Linear Magnetoconductivity as a Probe of Time-Reversal Symmetry Breaking.” <i>Physical Review B</i>, vol. 112, no. 13, 134407, American Physical Society, 2025, doi:<a href=\"https://doi.org/10.1103/33ns-8gwj\">10.1103/33ns-8gwj</a>.","chicago":"Sunko, Veronika, C. Liu, M. Vila, I. Na, Y. Tang, V. Kozii, S. M. Griffin, J. E. Moore, and J. Orenstein. “Linear Magnetoconductivity as a Probe of Time-Reversal Symmetry Breaking.” <i>Physical Review B</i>. American Physical Society, 2025. <a href=\"https://doi.org/10.1103/33ns-8gwj\">https://doi.org/10.1103/33ns-8gwj</a>."},"type":"journal_article","volume":112,"intvolume":"       112","publication":"Physical Review B","language":[{"iso":"eng"}],"quality_controlled":"1","author":[{"full_name":"Sunko, Veronika","orcid":"0000-0003-2724-3523","id":"23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3","first_name":"Veronika","last_name":"Sunko"},{"full_name":"Liu, C.","first_name":"C.","last_name":"Liu"},{"first_name":"M.","last_name":"Vila","full_name":"Vila, M."},{"first_name":"I.","last_name":"Na","full_name":"Na, I."},{"last_name":"Tang","first_name":"Y.","full_name":"Tang, Y."},{"full_name":"Kozii, V.","first_name":"V.","last_name":"Kozii"},{"full_name":"Griffin, S. M.","first_name":"S. M.","last_name":"Griffin"},{"full_name":"Moore, J. E.","first_name":"J. E.","last_name":"Moore"},{"first_name":"J.","last_name":"Orenstein","full_name":"Orenstein, J."}],"extern":"1","publisher":"American Physical Society","status":"public","oa":1,"OA_type":"green","issue":"13","title":"Linear magnetoconductivity as a probe of time-reversal symmetry breaking","article_processing_charge":"No","arxiv":1,"date_created":"2026-03-11T10:37:59Z","oa_version":"Preprint","publication_status":"published","external_id":{"arxiv":["2310.15631"]},"abstract":[{"lang":"eng","text":"Several optical experiments have shown that in magnetic materials, the principal axes of response tensors can rotate as an odd function of an applied magnetic field. Here we offer a microscopic explanation of this effect, and we propose a closely related dc transport phenomenon—an off-diagonal symmetric conductivity, linear and odd in a magnetic field, which we refer to as linear magnetoconductivity (LMC). Although LMC has the same functional dependence on a magnetic field as the Hall effect, its origin is fundamentally different: LMC requires time-reversal symmetry to be broken even before a magnetic field is applied, and is therefore a sensitive probe of magnetism. We demonstrate LMC in three different ways: via a tight-binding toy model, a density functional theory calculation on MnPSe3, and a semiclassical treatment. The third approach identifies two distinct mechanisms yielding LMC: momentum-dependent band magnetization and Berry curvature. Finally, we propose an experimental geometry suitable for detecting LMC, and we demonstrate its applicability using Landauer-Büttiker simulations. Our results emphasize the importance of measuring the full conductivity tensor in magnetic materials, and they introduce LMC as a new transport probe of symmetry."}],"article_type":"original"},{"ddc":["540"],"volume":147,"citation":{"ista":"Fender SS, Schnitzer N, Fang W, Bhatt L, Huang D, Malik A, Gonzalez O, Sunko V, Xie LS, Muller DA, Orenstein J, Ping Y, Goodge BH, Bediako DK. 2025. Unconventional superlattice ordering in intercalated transition metal dichalcogenide V1/3NbS2. Journal of the American Chemical Society. 147(36), 32315–32320.","apa":"Fender, S. S., Schnitzer, N., Fang, W., Bhatt, L., Huang, D., Malik, A., … Bediako, D. K. (2025). Unconventional superlattice ordering in intercalated transition metal dichalcogenide V1/3NbS2. <i>Journal of the American Chemical Society</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/jacs.5c07385\">https://doi.org/10.1021/jacs.5c07385</a>","ama":"Fender SS, Schnitzer N, Fang W, et al. Unconventional superlattice ordering in intercalated transition metal dichalcogenide V1/3NbS2. <i>Journal of the American Chemical Society</i>. 2025;147(36):32315-32320. doi:<a href=\"https://doi.org/10.1021/jacs.5c07385\">10.1021/jacs.5c07385</a>","short":"S.S. Fender, N. Schnitzer, W. Fang, L. Bhatt, D. Huang, A. Malik, O. Gonzalez, V. Sunko, L.S. Xie, D.A. Muller, J. Orenstein, Y. Ping, B.H. Goodge, D.K. Bediako, Journal of the American Chemical Society 147 (2025) 32315–32320.","mla":"Fender, Shannon S., et al. “Unconventional Superlattice Ordering in Intercalated Transition Metal Dichalcogenide V1/3NbS2.” <i>Journal of the American Chemical Society</i>, vol. 147, no. 36, American Chemical Society, 2025, pp. 32315–20, doi:<a href=\"https://doi.org/10.1021/jacs.5c07385\">10.1021/jacs.5c07385</a>.","chicago":"Fender, Shannon S., Noah Schnitzer, Wuzhang Fang, Lopa Bhatt, Dingbin Huang, Amani Malik, Oscar Gonzalez, et al. “Unconventional Superlattice Ordering in Intercalated Transition Metal Dichalcogenide V1/3NbS2.” <i>Journal of the American Chemical Society</i>. American Chemical Society, 2025. <a href=\"https://doi.org/10.1021/jacs.5c07385\">https://doi.org/10.1021/jacs.5c07385</a>.","ieee":"S. S. Fender <i>et al.</i>, “Unconventional superlattice ordering in intercalated transition metal dichalcogenide V1/3NbS2,” <i>Journal of the American Chemical Society</i>, vol. 147, no. 36. American Chemical Society, pp. 32315–32320, 2025."},"type":"journal_article","language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":"       147","publication":"Journal of the American Chemical Society","doi":"10.1021/jacs.5c07385","date_published":"2025-08-29T00:00:00Z","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1021/jacs.5c07385"}],"day":"29","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21432","date_updated":"2026-03-16T08:30:44Z","year":"2025","OA_place":"publisher","month":"08","publication_identifier":{"eissn":["1520-5126"],"issn":["0002-7863"]},"pmid":1,"license":"https://creativecommons.org/licenses/by-nc-nd/4.0/","external_id":{"arxiv":["2506.22686"],"pmid":["40882980"]},"abstract":[{"lang":"eng","text":"The interplay between symmetry and topology in magnetic materials makes it possible to engineer exotic phases and technologically useful properties. A key requirement for these pursuits is achieving control over local crystallographic and magnetic structure, usually through sample morphology (such as synthesis of bulk crystals versus thin films) and application of magnetic or electric fields. Here we show that V1/3NbS2 can be crystallized in two ordered superlattices, distinguished by the periodicity of out-of-plane magnetic intercalants. Whereas one of these structures is metallic and displays the hallmarks of altermagnetism, the other superlattice, which has not been isolated before in this family of intercalation compounds, is a semimetallic noncollinear antiferromagnet that may enable access to topologically nontrivial properties. This observation of an unconventional superlattice structure establishes a powerful route for tailoring the tremendous array of magnetic and electronic behaviors hosted in related materials and may expand their use in low-power spintronic or topological quantum devices."}],"page":"32315-32320","article_type":"original","issue":"36","OA_type":"hybrid","oa_version":"Published Version","publication_status":"published","date_created":"2026-03-11T10:38:20Z","title":"Unconventional superlattice ordering in intercalated transition metal dichalcogenide V1/3NbS2","article_processing_charge":"Yes (in subscription journal)","arxiv":1,"has_accepted_license":"1","status":"public","oa":1,"tmp":{"short":"CC BY-NC-ND (4.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)"},"extern":"1","author":[{"first_name":"Shannon S.","last_name":"Fender","full_name":"Fender, Shannon S."},{"last_name":"Schnitzer","first_name":"Noah","full_name":"Schnitzer, Noah"},{"first_name":"Wuzhang","last_name":"Fang","full_name":"Fang, Wuzhang"},{"last_name":"Bhatt","first_name":"Lopa","full_name":"Bhatt, Lopa"},{"last_name":"Huang","first_name":"Dingbin","full_name":"Huang, Dingbin"},{"full_name":"Malik, Amani","first_name":"Amani","last_name":"Malik"},{"last_name":"Gonzalez","first_name":"Oscar","full_name":"Gonzalez, Oscar"},{"last_name":"Sunko","id":"23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3","first_name":"Veronika","orcid":"0000-0003-2724-3523","full_name":"Sunko, Veronika"},{"full_name":"Xie, Lilia S.","first_name":"Lilia S.","last_name":"Xie"},{"full_name":"Muller, David A.","first_name":"David A.","last_name":"Muller"},{"full_name":"Orenstein, Joseph","first_name":"Joseph","last_name":"Orenstein"},{"full_name":"Ping, Yuan","first_name":"Yuan","last_name":"Ping"},{"last_name":"Goodge","first_name":"Berit H.","full_name":"Goodge, Berit H."},{"full_name":"Bediako, D. Kwabena","first_name":"D. Kwabena","last_name":"Bediako"}],"publisher":"American Chemical Society"},{"status":"public","oa":1,"author":[{"first_name":"Marc","last_name":"Vila","full_name":"Vila, Marc"},{"last_name":"Sunko","first_name":"Veronika","id":"23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3","full_name":"Sunko, Veronika","orcid":"0000-0003-2724-3523"},{"full_name":"Moore, Joel E.","first_name":"Joel E.","last_name":"Moore"}],"extern":"1","publisher":"American Physical Society","external_id":{"arxiv":["2410.23513"]},"abstract":[{"text":"Altermagnets, magnetic materials with zero magnetization and spin-split band structure, have gained tremendous attention recently for their rich physics and potential applications. Here, we report on a microscopic tight-binding model that unveils a unique coupling between orbitals and spins in 𝑑-wave altermagnets, which gives rise to momentum-dependent and spin-selective optical absorption. This coupling promotes the controlled optical excitation of up or down spins depending on the polarization direction of linearly polarized light. Such an effect originates from the coupling of orbitals to the sublattice degree of freedom through the crystal field, which is then coupled to spins through the antiferromagnetic interaction. Our crystal field analysis, which is general to any type of altermagnet, helps understand the onset of altermagnetism from a microscopic point of view, and we use our results to propose clear magneto-optical signatures of our predictions. Our findings shine light on the interplay between orbitals and spins in altermagnets, thus paving the way towards novel orbitronic and optospintronic devices.","lang":"eng"}],"article_type":"letter_note","issue":"2","OA_type":"green","publication_status":"published","date_created":"2026-03-11T10:38:52Z","oa_version":"Preprint","article_processing_charge":"No","title":"Orbital-spin locking and its optical signatures in altermagnets","arxiv":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21433","date_updated":"2026-03-16T08:37:20Z","year":"2025","OA_place":"repository","month":"07","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"volume":112,"type":"journal_article","citation":{"short":"M. Vila, V. Sunko, J.E. Moore, Physical Review B 112 (2025).","ama":"Vila M, Sunko V, Moore JE. Orbital-spin locking and its optical signatures in altermagnets. <i>Physical Review B</i>. 2025;112(2). doi:<a href=\"https://doi.org/10.1103/bzzy-ngcs\">10.1103/bzzy-ngcs</a>","mla":"Vila, Marc, et al. “Orbital-Spin Locking and Its Optical Signatures in Altermagnets.” <i>Physical Review B</i>, vol. 112, no. 2, L020401, American Physical Society, 2025, doi:<a href=\"https://doi.org/10.1103/bzzy-ngcs\">10.1103/bzzy-ngcs</a>.","chicago":"Vila, Marc, Veronika Sunko, and Joel E. Moore. “Orbital-Spin Locking and Its Optical Signatures in Altermagnets.” <i>Physical Review B</i>. American Physical Society, 2025. <a href=\"https://doi.org/10.1103/bzzy-ngcs\">https://doi.org/10.1103/bzzy-ngcs</a>.","ieee":"M. Vila, V. Sunko, and J. E. Moore, “Orbital-spin locking and its optical signatures in altermagnets,” <i>Physical Review B</i>, vol. 112, no. 2. American Physical Society, 2025.","ista":"Vila M, Sunko V, Moore JE. 2025. Orbital-spin locking and its optical signatures in altermagnets. Physical Review B. 112(2), L020401.","apa":"Vila, M., Sunko, V., &#38; Moore, J. E. (2025). Orbital-spin locking and its optical signatures in altermagnets. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/bzzy-ngcs\">https://doi.org/10.1103/bzzy-ngcs</a>"},"language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":"       112","publication":"Physical Review B","doi":"10.1103/bzzy-ngcs","date_published":"2025-07-01T00:00:00Z","article_number":"L020401","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2410.23513","open_access":"1"}],"day":"01"},{"doi":"10.48550/arXiv.2501.09084","OA_type":"green","date_published":"2025-01-15T00:00:00Z","publication_status":"submitted","oa_version":"Preprint","article_number":"2501.09084","date_created":"2026-03-11T10:39:20Z","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2501.09084","open_access":"1"}],"title":"Goldstone mode of the broken helix in U(1) magnet EuIn2As2","article_processing_charge":"No","day":"15","arxiv":1,"external_id":{"arxiv":["2501.09084"]},"abstract":[{"text":"Goldstone modes acquire a frequency gap in the presence of perturbations that break the underlying continuous symmetry. Here, we study the response of a spin-based Goldstone mode to strain and magnetic field in the broken helix, a multi-$\\textbf{Q}$ phase of EuIn$_2$As$_2$. Optical polarimetry with spatial and temporal resolution allows us to access information about both the structure and frequency of optically excited spin-wave modes under different strain conditions. We observe nearly uniform spin precession characteristic of a Goldstone mode only when magnetic field dominates over strain. In this regime, the frequency depends linearly on the applied field. A symmetry analysis for predicting the mode frequency near zero field demonstrates that the observed scaling is of the lowest allowed order. This work thus demonstrates the connections between magnetic symmetries and the frequency dependence of the Goldstone mode in an external field, and illustrates the power of our technique for studying the dynamics of complex magnets.","lang":"eng"}],"citation":{"apa":"Alex Liebman-Pelaez, A. L.-P., Garratt, S. J., Sunko, V., Sun, Y., Soh, J. R., Prabhakaran, D., … Orenstein, J. (n.d.). Goldstone mode of the broken helix in U(1) magnet EuIn2As2. <i>arXiv</i>. <a href=\"https://doi.org/10.48550/arXiv.2501.09084\">https://doi.org/10.48550/arXiv.2501.09084</a>","ista":"Alex Liebman-Pelaez AL-P, Garratt SJ, Sunko V, Sun Y, Soh JR, Prabhakaran D, Boothroyd AT, Orenstein J. Goldstone mode of the broken helix in U(1) magnet EuIn2As2. arXiv, 2501.09084.","ieee":"A. L.-P. Alex Liebman-Pelaez <i>et al.</i>, “Goldstone mode of the broken helix in U(1) magnet EuIn2As2,” <i>arXiv</i>. .","ama":"Alex Liebman-Pelaez AL-P, Garratt SJ, Sunko V, et al. Goldstone mode of the broken helix in U(1) magnet EuIn2As2. <i>arXiv</i>. doi:<a href=\"https://doi.org/10.48550/arXiv.2501.09084\">10.48550/arXiv.2501.09084</a>","short":"A.L.-P. Alex Liebman-Pelaez, S.J. Garratt, V. Sunko, Y. Sun, J.R. Soh, D. Prabhakaran, A.T. Boothroyd, J. Orenstein, ArXiv (n.d.).","mla":"Alex Liebman-Pelaez, Alex Liebman-Pelaez, et al. “Goldstone Mode of the Broken Helix in U(1) Magnet EuIn2As2.” <i>ArXiv</i>, 2501.09084, doi:<a href=\"https://doi.org/10.48550/arXiv.2501.09084\">10.48550/arXiv.2501.09084</a>.","chicago":"Alex Liebman-Pelaez, Alex Liebman-Pelaez, Samuel J. Garratt, Veronika Sunko, Yue Sun, Jian R. Soh, Dharmalingam Prabhakaran, Andrew T. Boothroyd, and Joseph Orenstein. “Goldstone Mode of the Broken Helix in U(1) Magnet EuIn2As2.” <i>ArXiv</i>, n.d. <a href=\"https://doi.org/10.48550/arXiv.2501.09084\">https://doi.org/10.48550/arXiv.2501.09084</a>."},"type":"preprint","language":[{"iso":"eng"}],"publication":"arXiv","month":"01","extern":"1","author":[{"first_name":"Alex Liebman-Pelaez","last_name":"Alex Liebman-Pelaez","full_name":"Alex Liebman-Pelaez, Alex Liebman-Pelaez"},{"last_name":"Garratt","first_name":"Samuel J.","full_name":"Garratt, Samuel J."},{"orcid":"0000-0003-2724-3523","full_name":"Sunko, Veronika","last_name":"Sunko","id":"23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3","first_name":"Veronika"},{"first_name":"Yue","last_name":"Sun","full_name":"Sun, Yue"},{"full_name":"Soh, Jian R.","last_name":"Soh","first_name":"Jian R."},{"last_name":"Prabhakaran","first_name":"Dharmalingam","full_name":"Prabhakaran, Dharmalingam"},{"last_name":"Boothroyd","first_name":"Andrew T.","full_name":"Boothroyd, Andrew T."},{"first_name":"Joseph","last_name":"Orenstein","full_name":"Orenstein, Joseph"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","_id":"21434","date_updated":"2026-03-16T08:39:57Z","oa":1,"year":"2025","OA_place":"repository"},{"external_id":{"arxiv":["2510.11619"]},"abstract":[{"lang":"eng","text":"Multiferroic materials, in which electric polarization and magnetic order coexist and couple, offer rich opportunities for both fundamental discovery and technology. However, multiferroicity remains rare due to conflicting electronic requirements for ferroelectricity and magnetism. One route to circumvent this challenge is to exploit the noncollinear ordering of spin cycloids, whose symmetry permits the emergence of polar order. In this work, we introduce another pathway to multiferroic order in which strain generates polarization in materials that host nonpolar spin spirals. To demonstrate this phenomenon, we chose the spin spiral in the well-studied helimagnet Cr1/3NbS2. To detect the induced polarization, we introduce the technique of magnetoelectric birefringence (MEB), an optical probe that enables spatially-resolved and unambiguous detection of polar order. By combining MEB imaging with strain engineering, we confirm the onset of a polar vector at the magnetic transition, establishing strained Cr1/3NbS2 as a type-II multiferroic."}],"citation":{"apa":"Sun, Y., Ahn, Y., Sapkota, D., Arachchige, H. S., Xue, R., Mozaffari, S., … Sunko, V. (n.d.). Strain-induced multiferroicity in Cr1/3NbS2. <i>arXiv</i>. <a href=\"https://doi.org/10.48550/arXiv.2510.11619\">https://doi.org/10.48550/arXiv.2510.11619</a>","ista":"Sun Y, Ahn Y, Sapkota D, Arachchige HS, Xue R, Mozaffari S, Mandrus DG, Zhao L, Orenstein J, Sunko V. Strain-induced multiferroicity in Cr1/3NbS2. arXiv, 2510.11619.","ieee":"Y. Sun <i>et al.</i>, “Strain-induced multiferroicity in Cr1/3NbS2,” <i>arXiv</i>. .","short":"Y. Sun, Y. Ahn, D. Sapkota, H.S. Arachchige, R. Xue, S. Mozaffari, D.G. Mandrus, L. Zhao, J. Orenstein, V. Sunko, ArXiv (n.d.).","ama":"Sun Y, Ahn Y, Sapkota D, et al. Strain-induced multiferroicity in Cr1/3NbS2. <i>arXiv</i>. doi:<a href=\"https://doi.org/10.48550/arXiv.2510.11619\">10.48550/arXiv.2510.11619</a>","mla":"Sun, Y., et al. “Strain-Induced Multiferroicity in Cr1/3NbS2.” <i>ArXiv</i>, 2510.11619, doi:<a href=\"https://doi.org/10.48550/arXiv.2510.11619\">10.48550/arXiv.2510.11619</a>.","chicago":"Sun, Y., Y. Ahn, D. Sapkota, H. S. Arachchige, R. Xue, S. Mozaffari, D. G. Mandrus, L. Zhao, J. Orenstein, and Veronika Sunko. “Strain-Induced Multiferroicity in Cr1/3NbS2.” <i>ArXiv</i>, n.d. <a href=\"https://doi.org/10.48550/arXiv.2510.11619\">https://doi.org/10.48550/arXiv.2510.11619</a>."},"type":"preprint","language":[{"iso":"eng"}],"publication":"arXiv","acknowledgement":"Y.S., V.S. and J.O. received support from the Gordon and Betty Moore Foundation’s\r\nEPiQS Initiative through Grant GBMF4537 to J.O. at UC Berkeley. Experimental and theoretical work at LBNL and UC Berkeley was funded by the Quantum Materials (KC2202) program under the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences,\r\nMaterials Sciences and Engineering Division under Contract No. DE-AC02-05CH11231.\r\nY.S. also acknowledges support by the David J. Thouless Postdoctoral Fellowship at the\r\nDepartment of Physics, University of Washington. DGM acknowledges support from the\r\nGordon and Betty Moore Foundation’s EPiQS Initiative, Grant GBMF9069. L.Z. acknowledges the support from the U.S. Department of Energy (DOE), Office of Science, Basic\r\nEnergy Science (BES), under award No. DE-SC0024145","doi":"10.48550/arXiv.2510.11619","OA_type":"green","article_number":"2510.11619","date_published":"2025-10-13T00:00:00Z","publication_status":"submitted","date_created":"2026-03-11T10:39:44Z","oa_version":"Preprint","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2510.11619"}],"article_processing_charge":"No","title":"Strain-induced multiferroicity in Cr1/3NbS2","arxiv":1,"day":"13","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","_id":"21435","date_updated":"2026-03-16T08:43:57Z","year":"2025","oa":1,"OA_place":"repository","author":[{"full_name":"Sun, Y.","last_name":"Sun","first_name":"Y."},{"first_name":"Y.","last_name":"Ahn","full_name":"Ahn, Y."},{"last_name":"Sapkota","first_name":"D.","full_name":"Sapkota, D."},{"full_name":"Arachchige, H. S.","last_name":"Arachchige","first_name":"H. S."},{"last_name":"Xue","first_name":"R.","full_name":"Xue, R."},{"last_name":"Mozaffari","first_name":"S.","full_name":"Mozaffari, S."},{"first_name":"D. G.","last_name":"Mandrus","full_name":"Mandrus, D. G."},{"full_name":"Zhao, L.","last_name":"Zhao","first_name":"L."},{"full_name":"Orenstein, J.","last_name":"Orenstein","first_name":"J."},{"first_name":"Veronika","id":"23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3","last_name":"Sunko","orcid":"0000-0003-2724-3523","full_name":"Sunko, Veronika"}],"corr_author":"1","month":"10","department":[{"_id":"VeSu"}]},{"article_number":"108","date_published":"2025-12-14T00:00:00Z","day":"14","doi":"10.1145/3757377.3763962","quality_controlled":"1","language":[{"iso":"eng"}],"publication":"Proceedings SIGGRAPH Asia 2025 Conference Papers 2025","acknowledgement":"This work was supported by the ERC Consolidator Grant 4DReply (770784) and Saarbrücken Research Center for Visual Comput- ing, Interaction, and AI. We thank Oleksandr Sotnychenko for helping us with setting up data capture. Finally, we thank Shrisha Bharadwaj for discussions, proofreading and innumerable support.","ddc":["000"],"citation":{"apa":"Rao, P., Meka, A., Zhou, X., Fox, G., Mallikarjun, B. R., Zhan, F., … Theobalt, C. (2025). 3DPR: Single image 3D portrait relighting with generative priors. In <i>Proceedings SIGGRAPH Asia 2025 Conference Papers 2025</i>. Hong Kong, Hong Kong: Association for Computing Machinery. <a href=\"https://doi.org/10.1145/3757377.3763962\">https://doi.org/10.1145/3757377.3763962</a>","ista":"Rao P, Meka A, Zhou X, Fox G, Mallikarjun BR, Zhan F, Weyrich T, Bickel B, Pfister H, Matusik W, Beeler T, Elgharib M, Habermann M, Theobalt C. 2025. 3DPR: Single image 3D portrait relighting with generative priors. Proceedings SIGGRAPH Asia 2025 Conference Papers 2025. SA: SIGGRAPH Asia, 108.","ieee":"P. Rao <i>et al.</i>, “3DPR: Single image 3D portrait relighting with generative priors,” in <i>Proceedings SIGGRAPH Asia 2025 Conference Papers 2025</i>, Hong Kong, Hong Kong, 2025.","ama":"Rao P, Meka A, Zhou X, et al. 3DPR: Single image 3D portrait relighting with generative priors. In: <i>Proceedings SIGGRAPH Asia 2025 Conference Papers 2025</i>. Association for Computing Machinery; 2025. doi:<a href=\"https://doi.org/10.1145/3757377.3763962\">10.1145/3757377.3763962</a>","short":"P. Rao, A. Meka, X. Zhou, G. Fox, B.R. Mallikarjun, F. Zhan, T. Weyrich, B. Bickel, H. Pfister, W. Matusik, T. Beeler, M. Elgharib, M. Habermann, C. Theobalt, in:, Proceedings SIGGRAPH Asia 2025 Conference Papers 2025, Association for Computing Machinery, 2025.","mla":"Rao, Pramod, et al. “3DPR: Single Image 3D Portrait Relighting with Generative Priors.” <i>Proceedings SIGGRAPH Asia 2025 Conference Papers 2025</i>, 108, Association for Computing Machinery, 2025, doi:<a href=\"https://doi.org/10.1145/3757377.3763962\">10.1145/3757377.3763962</a>.","chicago":"Rao, Pramod, Abhimitra Meka, Xilong Zhou, Gereon Fox, B. R. Mallikarjun, Fangneng Zhan, Tim Weyrich, et al. “3DPR: Single Image 3D Portrait Relighting with Generative Priors.” In <i>Proceedings SIGGRAPH Asia 2025 Conference Papers 2025</i>. Association for Computing Machinery, 2025. <a href=\"https://doi.org/10.1145/3757377.3763962\">https://doi.org/10.1145/3757377.3763962</a>."},"type":"conference","publication_identifier":{"isbn":["9798400721373"]},"month":"12","year":"2025","OA_place":"publisher","_id":"21474","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-03-23T14:45:58Z","oa_version":"Published Version","date_created":"2026-03-22T23:04:35Z","publication_status":"published","arxiv":1,"article_processing_charge":"No","title":"3DPR: Single image 3D portrait relighting with generative priors","OA_type":"gold","file_date_updated":"2026-03-23T14:41:07Z","file":[{"file_id":"21479","file_size":57903731,"date_updated":"2026-03-23T14:41:07Z","date_created":"2026-03-23T14:41:07Z","success":1,"access_level":"open_access","checksum":"a3dc426cdf7bbd84a192e5140bb3bb49","creator":"dernst","content_type":"application/pdf","file_name":"2025_SiggraphAsia_Rao.pdf","relation":"main_file"}],"license":"https://creativecommons.org/licenses/by-nc/4.0/","external_id":{"arxiv":["2510.15846"]},"abstract":[{"text":"Rendering novel, relit views of a human head, given a monocular portrait image as input, is an inherently underconstrained problem. The traditional graphics solution is to explicitly decompose the input image into geometry, material and lighting via differentiable rendering; but this is constrained by the multiple assumptions and approximations of the underlying models and parameterizations of these scene components. We propose 3DPR, an image-based relighting model that leverages generative priors learnt from multi-view One-Light-at-A-Time (OLAT) images captured in a light stage. We introduce a new diverse and large-scale multi-view 4K OLAT dataset of 139 subjects to learn a high-quality prior over the distribution of high-frequency face reflectance. We leverage the latent space of a pre-trained generative head model that provides a rich prior over face geometry learnt from in-the-wild image datasets. The input portrait is first embedded in the latent manifold of such a model through an encoder-based inversion process. Then a novel triplane-based reflectance network trained on our lightstage data is used to synthesize high-fidelity OLAT images to enable image-based relighting. Our reflectance network operates in the latent space of the generative head model, crucially enabling a relatively small number of lightstage images to train the reflectance model. Combining the generated OLATs according to a given HDRI environment maps yields physically accurate environmental relighting results. Through quantitative and qualitative evaluations, we demonstrate that 3DPR outperforms previous methods, particularly in preserving identity and in capturing lighting effects such as specularities, self-shadows, and subsurface scattering.","lang":"eng"}],"department":[{"_id":"BeBi"}],"publisher":"Association for Computing Machinery","author":[{"last_name":"Rao","first_name":"Pramod","full_name":"Rao, Pramod"},{"first_name":"Abhimitra","last_name":"Meka","full_name":"Meka, Abhimitra"},{"full_name":"Zhou, Xilong","first_name":"Xilong","last_name":"Zhou"},{"last_name":"Fox","first_name":"Gereon","full_name":"Fox, Gereon"},{"full_name":"Mallikarjun, B. R.","first_name":"B. R.","last_name":"Mallikarjun"},{"full_name":"Zhan, Fangneng","last_name":"Zhan","first_name":"Fangneng"},{"first_name":"Tim","last_name":"Weyrich","full_name":"Weyrich, Tim"},{"last_name":"Bickel","first_name":"Bernd","id":"49876194-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6511-9385","full_name":"Bickel, Bernd"},{"last_name":"Pfister","first_name":"Hanspeter","full_name":"Pfister, Hanspeter"},{"last_name":"Matusik","first_name":"Wojciech","full_name":"Matusik, Wojciech"},{"full_name":"Beeler, Thabo","first_name":"Thabo","last_name":"Beeler"},{"full_name":"Elgharib, Mohamed","first_name":"Mohamed","last_name":"Elgharib"},{"full_name":"Habermann, Marc","first_name":"Marc","last_name":"Habermann"},{"full_name":"Theobalt, Christian","last_name":"Theobalt","first_name":"Christian"}],"scopus_import":"1","conference":{"name":"SA: SIGGRAPH Asia","end_date":"2025-12-18","location":"Hong Kong, Hong Kong","start_date":"2025-12-15"},"oa":1,"tmp":{"short":"CC BY-NC (4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc/4.0/legalcode","image":"/images/cc_by_nc.png","name":"Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)"},"has_accepted_license":"1","status":"public"},{"type":"journal_article","citation":{"mla":"Cheng, Dali, et al. “Creating High-Dimensional Topological Physics Using a Single Ring Resonator.” <i>Newton</i>, vol. 1, no. 7, 100163, Elsevier, 2025, doi:<a href=\"https://doi.org/10.1016/j.newton.2025.100163\">10.1016/j.newton.2025.100163</a>.","chicago":"Cheng, Dali, Heming Wang, Charles Roques-Carmes, Janet Zhong, and Shanhui Fan. “Creating High-Dimensional Topological Physics Using a Single Ring Resonator.” <i>Newton</i>. Elsevier, 2025. <a href=\"https://doi.org/10.1016/j.newton.2025.100163\">https://doi.org/10.1016/j.newton.2025.100163</a>.","short":"D. Cheng, H. Wang, C. Roques-Carmes, J. Zhong, S. Fan, Newton 1 (2025).","ama":"Cheng D, Wang H, Roques-Carmes C, Zhong J, Fan S. Creating high-dimensional topological physics using a single ring resonator. <i>Newton</i>. 2025;1(7). doi:<a href=\"https://doi.org/10.1016/j.newton.2025.100163\">10.1016/j.newton.2025.100163</a>","ieee":"D. Cheng, H. Wang, C. Roques-Carmes, J. Zhong, and S. Fan, “Creating high-dimensional topological physics using a single ring resonator,” <i>Newton</i>, vol. 1, no. 7. Elsevier, 2025.","ista":"Cheng D, Wang H, Roques-Carmes C, Zhong J, Fan S. 2025. Creating high-dimensional topological physics using a single ring resonator. Newton. 1(7), 100163.","apa":"Cheng, D., Wang, H., Roques-Carmes, C., Zhong, J., &#38; Fan, S. (2025). Creating high-dimensional topological physics using a single ring resonator. <i>Newton</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.newton.2025.100163\">https://doi.org/10.1016/j.newton.2025.100163</a>"},"ddc":["530"],"volume":1,"intvolume":"         1","publication":"Newton","language":[{"iso":"eng"}],"quality_controlled":"1","doi":"10.1016/j.newton.2025.100163","day":"08","article_number":"100163","date_published":"2025-09-08T00:00:00Z","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2208.02368","open_access":"1"}],"date_updated":"2026-04-27T08:44:19Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21515","OA_place":"repository","year":"2025","month":"09","publication_identifier":{"eissn":["2950-6360"]},"external_id":{"arxiv":["2208.02368"]},"abstract":[{"lang":"eng","text":"The property of a physical system is highly dependent on its dimensionality. Topological physics in three or more dimensions exhibits rich phenomena without lower-dimensional counterparts. In this paper, the authors propose a scheme to implement such high-dimensional topological physics in a single photonic ring resonator, where the model of interest can be arbitrarily high dimensional and arbitrarily multi-band. The frequency modes in the resonator, coupled via electro-optic modulation, are used to create a high-dimensional lattice, and the spatial modes are used as the pseudo-spin degree of freedom within each lattice site. The band structure of the model can be measured from the transmission spectrum of the ring resonator. The authors numerically demonstrate as examples a three-dimensional, two-band model and a five-dimensional, four-band model. This paper establishes a versatile and programmable platform for high-dimensional topological physics, paving the way for its experimental studies and future applications."}],"article_type":"original","OA_type":"green","issue":"7","title":"Creating high-dimensional topological physics using a single ring resonator","article_processing_charge":"No","arxiv":1,"publication_status":"published","date_created":"2026-03-30T12:22:47Z","oa_version":"Preprint","status":"public","oa":1,"scopus_import":"1","extern":"1","author":[{"full_name":"Cheng, Dali","last_name":"Cheng","first_name":"Dali"},{"last_name":"Wang","first_name":"Heming","full_name":"Wang, Heming"},{"id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","first_name":"Charles","last_name":"Roques-Carmes","full_name":"Roques-Carmes, Charles"},{"full_name":"Zhong, Janet","last_name":"Zhong","first_name":"Janet"},{"first_name":"Shanhui","last_name":"Fan","full_name":"Fan, Shanhui"}],"publisher":"Elsevier"},{"status":"public","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"oa":1,"scopus_import":"1","extern":"1","author":[{"last_name":"Be’er","first_name":"Orr","full_name":"Be’er, Orr"},{"first_name":"Avner","last_name":"Shultzman","full_name":"Shultzman, Avner"},{"full_name":"Strassberg, Rotem","first_name":"Rotem","last_name":"Strassberg"},{"first_name":"Georgy","last_name":"Dosovitskiy","full_name":"Dosovitskiy, Georgy"},{"full_name":"Veber, Noam","last_name":"Veber","first_name":"Noam"},{"full_name":"Schuetz, Roman","first_name":"Roman","last_name":"Schuetz"},{"full_name":"Roques-Carmes, Charles","last_name":"Roques-Carmes","first_name":"Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82"},{"full_name":"Kaminer, Ido","last_name":"Kaminer","first_name":"Ido"},{"last_name":"Bekenstein","first_name":"Yehonadav","full_name":"Bekenstein, Yehonadav"}],"publisher":"American Chemical Society","external_id":{"pmid":["39969821"]},"abstract":[{"lang":"eng","text":"Fast-emitting scintillators are essential for advanced diagnostic techniques, yet many suffer from low radiation attenuation. This trade-off is particularly pronounced in polymer scintillators, which, despite their fast emission, exhibit low density and low atomic numbers, limiting the radiation attenuation factor, resulting in low detection efficiency. Here, we overcome this limitation by creating a heterostructure scintillator of alternating nanometric layers, combining fast light-emitting polymer scintillator layers and transparent stopping layers with a high radiation attenuation factor. The nanolayer thicknesses are tuned to optimize the penetration depth of recoil electrons in active emissive layers, maximizing the conversion of X-rays to visible light. This design increases light output by up to 1.5 times and enhances imaging resolution by a factor of 2 compared to homogeneous polymer scintillators due to the ability to use thinner samples. These results demonstrate the potential of heterostructure scintillators as next-generation detector materials, overcoming the limitations of homogeneous scintillators."}],"page":"3422-3429","pmid":1,"article_type":"letter_note","keyword":["Scintillator","Heterostructure","Thin film","X-ray imaging","X-ray detector"],"OA_type":"hybrid","issue":"9","article_processing_charge":"No","title":"Heterostructure nanoscintillator for matching radiation absorbing layers with fast light-emitting layers","oa_version":"Published Version","publication_status":"published","date_created":"2026-03-30T12:22:47Z","date_updated":"2026-04-27T10:05:22Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21521","OA_place":"publisher","year":"2025","month":"02","publication_identifier":{"eissn":["1530-6992"],"issn":["1530-6984"]},"type":"journal_article","citation":{"apa":"Be’er, O., Shultzman, A., Strassberg, R., Dosovitskiy, G., Veber, N., Schuetz, R., … Bekenstein, Y. (2025). Heterostructure nanoscintillator for matching radiation absorbing layers with fast light-emitting layers. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.nanolett.4c05353\">https://doi.org/10.1021/acs.nanolett.4c05353</a>","ista":"Be’er O, Shultzman A, Strassberg R, Dosovitskiy G, Veber N, Schuetz R, Roques-Carmes C, Kaminer I, Bekenstein Y. 2025. Heterostructure nanoscintillator for matching radiation absorbing layers with fast light-emitting layers. Nano Letters. 25(9), 3422–3429.","ieee":"O. Be’er <i>et al.</i>, “Heterostructure nanoscintillator for matching radiation absorbing layers with fast light-emitting layers,” <i>Nano Letters</i>, vol. 25, no. 9. American Chemical Society, pp. 3422–3429, 2025.","ama":"Be’er O, Shultzman A, Strassberg R, et al. Heterostructure nanoscintillator for matching radiation absorbing layers with fast light-emitting layers. <i>Nano Letters</i>. 2025;25(9):3422-3429. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.4c05353\">10.1021/acs.nanolett.4c05353</a>","short":"O. Be’er, A. Shultzman, R. Strassberg, G. Dosovitskiy, N. Veber, R. Schuetz, C. Roques-Carmes, I. Kaminer, Y. Bekenstein, Nano Letters 25 (2025) 3422–3429.","chicago":"Be’er, Orr, Avner Shultzman, Rotem Strassberg, Georgy Dosovitskiy, Noam Veber, Roman Schuetz, Charles Roques-Carmes, Ido Kaminer, and Yehonadav Bekenstein. “Heterostructure Nanoscintillator for Matching Radiation Absorbing Layers with Fast Light-Emitting Layers.” <i>Nano Letters</i>. American Chemical Society, 2025. <a href=\"https://doi.org/10.1021/acs.nanolett.4c05353\">https://doi.org/10.1021/acs.nanolett.4c05353</a>.","mla":"Be’er, Orr, et al. “Heterostructure Nanoscintillator for Matching Radiation Absorbing Layers with Fast Light-Emitting Layers.” <i>Nano Letters</i>, vol. 25, no. 9, American Chemical Society, 2025, pp. 3422–29, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.4c05353\">10.1021/acs.nanolett.4c05353</a>."},"ddc":["530"],"volume":25,"intvolume":"        25","publication":"Nano Letters","language":[{"iso":"eng"}],"quality_controlled":"1","doi":"10.1021/acs.nanolett.4c05353","day":"19","date_published":"2025-02-19T00:00:00Z","main_file_link":[{"url":"https://doi.org/10.1021/acs.nanolett.4c05353","open_access":"1"}]},{"page":"31363-31370","abstract":[{"lang":"eng","text":"In X-ray tubes, more than 99% of the kilowatts of power supplied to generate X-rays via bremsstrahlung is lost as heat in the anode. Therefore, thermal management is a critical barrier to the development of more powerful X-ray tubes with higher brightness and spatial coherence, which are needed to translate imaging modalities such as phase-contrast imaging to the clinic. In rotating anode X-ray tubes, the most common design, thermal radiation is a bottleneck that prevents efficient cooling of the anode─the hottest part of the device by far. We predict that nanophotonic patterning of the anode of an X-ray tube enhances heat dissipation via thermal radiation, enabling it to operate at higher powers without an increase in temperature. The focal spot size, which is related to the spatial coherence of generated X-rays, can also be reduced at a constant temperature. A major advantage of our “nanophotonic thermal management” approach is that in principle, it allows complete control over the spectrum and direction of thermal radiation, which can lead to optimal thermal routing and improved performance."}],"external_id":{"arxiv":["2503.20946"]},"article_type":"original","keyword":["X-ray tubes","thermal management","nanophotonics","thermal radiation","X-ray imaging","high-temperature"],"OA_type":"green","issue":"35","arxiv":1,"title":"Nanophotonic thermal management in X-ray tubes","article_processing_charge":"No","publication_status":"published","date_created":"2026-03-30T12:22:47Z","oa_version":"Preprint","status":"public","scopus_import":"1","oa":1,"author":[{"full_name":"Pajovic, Simo","last_name":"Pajovic","first_name":"Simo"},{"last_name":"Roques-Carmes","first_name":"Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","full_name":"Roques-Carmes, Charles"},{"first_name":"Seou","last_name":"Choi","full_name":"Choi, Seou"},{"last_name":"Kooi","first_name":"Steven E.","full_name":"Kooi, Steven E."},{"full_name":"Gupta, Rajiv","last_name":"Gupta","first_name":"Rajiv"},{"full_name":"Zalis, Michael E.","last_name":"Zalis","first_name":"Michael E."},{"last_name":"Čelanović","first_name":"Ivan","full_name":"Čelanović, Ivan"},{"last_name":"Soljačić","first_name":"Marin","full_name":"Soljačić, Marin"}],"extern":"1","publisher":"American Chemical Society","citation":{"ieee":"S. Pajovic <i>et al.</i>, “Nanophotonic thermal management in X-ray tubes,” <i>ACS Nano</i>, vol. 19, no. 35. American Chemical Society, pp. 31363–31370, 2025.","mla":"Pajovic, Simo, et al. “Nanophotonic Thermal Management in X-Ray Tubes.” <i>ACS Nano</i>, vol. 19, no. 35, American Chemical Society, 2025, pp. 31363–70, doi:<a href=\"https://doi.org/10.1021/acsnano.5c05186\">10.1021/acsnano.5c05186</a>.","chicago":"Pajovic, Simo, Charles Roques-Carmes, Seou Choi, Steven E. Kooi, Rajiv Gupta, Michael E. Zalis, Ivan Čelanović, and Marin Soljačić. “Nanophotonic Thermal Management in X-Ray Tubes.” <i>ACS Nano</i>. American Chemical Society, 2025. <a href=\"https://doi.org/10.1021/acsnano.5c05186\">https://doi.org/10.1021/acsnano.5c05186</a>.","ama":"Pajovic S, Roques-Carmes C, Choi S, et al. Nanophotonic thermal management in X-ray tubes. <i>ACS Nano</i>. 2025;19(35):31363-31370. doi:<a href=\"https://doi.org/10.1021/acsnano.5c05186\">10.1021/acsnano.5c05186</a>","short":"S. Pajovic, C. Roques-Carmes, S. Choi, S.E. Kooi, R. Gupta, M.E. Zalis, I. Čelanović, M. Soljačić, ACS Nano 19 (2025) 31363–31370.","apa":"Pajovic, S., Roques-Carmes, C., Choi, S., Kooi, S. E., Gupta, R., Zalis, M. E., … Soljačić, M. (2025). Nanophotonic thermal management in X-ray tubes. <i>ACS Nano</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsnano.5c05186\">https://doi.org/10.1021/acsnano.5c05186</a>","ista":"Pajovic S, Roques-Carmes C, Choi S, Kooi SE, Gupta R, Zalis ME, Čelanović I, Soljačić M. 2025. Nanophotonic thermal management in X-ray tubes. ACS Nano. 19(35), 31363–31370."},"type":"journal_article","volume":19,"publication":"ACS Nano","intvolume":"        19","quality_controlled":"1","language":[{"iso":"eng"}],"doi":"10.1021/acsnano.5c05186","day":"26","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2503.20946"}],"date_published":"2025-08-26T00:00:00Z","date_updated":"2026-04-27T08:56:39Z","_id":"21524","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","OA_place":"repository","year":"2025","month":"08","publication_identifier":{"issn":["1936-0851"],"eissn":["1936-086X"]}},{"article_type":"original","keyword":["nanophotonics","metasurfaces","computational imaging","inverse design"],"page":"1722-1733","abstract":[{"lang":"eng","text":"Metasurfaces, ultrathin structures composed of subwavelength optical elements, have revolutionized light manipulation by enabling precise control over electromagnetic waves’ amplitude, phase, polarization, and spectral properties. Concurrently, computational imaging leverages algorithms to reconstruct images from optically processed signals, overcoming the limitations of traditional imaging systems. This Perspective explores the synergistic integration of metaoptics and computational imaging, “metaoptic computational imaging”, which combines the physical wavefront shaping ability of metasurfaces with advanced computational algorithms to enhance imaging performance beyond conventional limits. We discuss how metaoptic computational imaging addresses the inherent limitations of single-layer metasurfaces in achieving multifunctionality without compromising efficiency. By treating metasurfaces as physical preconditioners and codesigning them with reconstruction algorithms through end-to-end (inverse) design, it is possible to jointly optimize the optical hardware and computational software. Advanced applications and new frontiers in the field enabled by metaoptic computational imaging are highlighted, including phase imaging and quantum state measurement."}],"title":"Metaoptic computational imaging","article_processing_charge":"No","publication_status":"published","oa_version":"None","date_created":"2026-03-30T12:22:47Z","OA_type":"closed access","issue":"4","scopus_import":"1","status":"public","publisher":"American Chemical Society","author":[{"id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","first_name":"Charles","last_name":"Roques-Carmes","full_name":"Roques-Carmes, Charles"},{"first_name":"Kai","last_name":"Wang","full_name":"Wang, Kai"},{"full_name":"Yang, Yuanmu","first_name":"Yuanmu","last_name":"Yang"},{"full_name":"Majumdar, Arka","last_name":"Majumdar","first_name":"Arka"},{"last_name":"Lin","first_name":"Zin","full_name":"Lin, Zin"}],"extern":"1","publication":"ACS Photonics","intvolume":"        12","quality_controlled":"1","language":[{"iso":"eng"}],"type":"journal_article","citation":{"apa":"Roques-Carmes, C., Wang, K., Yang, Y., Majumdar, A., &#38; Lin, Z. (2025). Metaoptic computational imaging. <i>ACS Photonics</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsphotonics.4c02266\">https://doi.org/10.1021/acsphotonics.4c02266</a>","ista":"Roques-Carmes C, Wang K, Yang Y, Majumdar A, Lin Z. 2025. Metaoptic computational imaging. ACS Photonics. 12(4), 1722–1733.","ieee":"C. Roques-Carmes, K. Wang, Y. Yang, A. Majumdar, and Z. Lin, “Metaoptic computational imaging,” <i>ACS Photonics</i>, vol. 12, no. 4. American Chemical Society, pp. 1722–1733, 2025.","mla":"Roques-Carmes, Charles, et al. “Metaoptic Computational Imaging.” <i>ACS Photonics</i>, vol. 12, no. 4, American Chemical Society, 2025, pp. 1722–33, doi:<a href=\"https://doi.org/10.1021/acsphotonics.4c02266\">10.1021/acsphotonics.4c02266</a>.","chicago":"Roques-Carmes, Charles, Kai Wang, Yuanmu Yang, Arka Majumdar, and Zin Lin. “Metaoptic Computational Imaging.” <i>ACS Photonics</i>. American Chemical Society, 2025. <a href=\"https://doi.org/10.1021/acsphotonics.4c02266\">https://doi.org/10.1021/acsphotonics.4c02266</a>.","ama":"Roques-Carmes C, Wang K, Yang Y, Majumdar A, Lin Z. Metaoptic computational imaging. <i>ACS Photonics</i>. 2025;12(4):1722-1733. doi:<a href=\"https://doi.org/10.1021/acsphotonics.4c02266\">10.1021/acsphotonics.4c02266</a>","short":"C. Roques-Carmes, K. Wang, Y. Yang, A. Majumdar, Z. Lin, ACS Photonics 12 (2025) 1722–1733."},"volume":12,"day":"13","date_published":"2025-02-13T00:00:00Z","doi":"10.1021/acsphotonics.4c02266","year":"2025","date_updated":"2026-04-27T07:12:34Z","_id":"21530","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"eissn":["2330-4022"]},"month":"02"},{"date_updated":"2026-04-27T08:42:39Z","_id":"21531","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","OA_place":"repository","year":"2025","month":"05","publication_identifier":{"eissn":["2330-4022"]},"type":"journal_article","citation":{"ieee":"C. Roques-Carmes, A. Karnieli, D. A. B. Miller, and S. Fan, “Automated modal analysis of entanglement with bipartite self-configuring optics,” <i>ACS Photonics</i>, vol. 12, no. 6. American Chemical Society, pp. 3285–3294, 2025.","mla":"Roques-Carmes, Charles, et al. “Automated Modal Analysis of Entanglement with Bipartite Self-Configuring Optics.” <i>ACS Photonics</i>, vol. 12, no. 6, American Chemical Society, 2025, pp. 3285–94, doi:<a href=\"https://doi.org/10.1021/acsphotonics.5c00813\">10.1021/acsphotonics.5c00813</a>.","chicago":"Roques-Carmes, Charles, Aviv Karnieli, David A. B. Miller, and Shanhui Fan. “Automated Modal Analysis of Entanglement with Bipartite Self-Configuring Optics.” <i>ACS Photonics</i>. American Chemical Society, 2025. <a href=\"https://doi.org/10.1021/acsphotonics.5c00813\">https://doi.org/10.1021/acsphotonics.5c00813</a>.","short":"C. Roques-Carmes, A. Karnieli, D.A.B. Miller, S. Fan, ACS Photonics 12 (2025) 3285–3294.","ama":"Roques-Carmes C, Karnieli A, Miller DAB, Fan S. Automated modal analysis of entanglement with bipartite self-configuring optics. <i>ACS Photonics</i>. 2025;12(6):3285-3294. doi:<a href=\"https://doi.org/10.1021/acsphotonics.5c00813\">10.1021/acsphotonics.5c00813</a>","apa":"Roques-Carmes, C., Karnieli, A., Miller, D. A. B., &#38; Fan, S. (2025). Automated modal analysis of entanglement with bipartite self-configuring optics. <i>ACS Photonics</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsphotonics.5c00813\">https://doi.org/10.1021/acsphotonics.5c00813</a>","ista":"Roques-Carmes C, Karnieli A, Miller DAB, Fan S. 2025. Automated modal analysis of entanglement with bipartite self-configuring optics. ACS Photonics. 12(6), 3285–3294."},"volume":12,"publication":"ACS Photonics","intvolume":"        12","quality_controlled":"1","language":[{"iso":"eng"}],"doi":"10.1021/acsphotonics.5c00813","day":"28","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2407.16849","open_access":"1"}],"date_published":"2025-05-28T00:00:00Z","status":"public","scopus_import":"1","oa":1,"extern":"1","author":[{"full_name":"Roques-Carmes, Charles","last_name":"Roques-Carmes","first_name":"Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82"},{"last_name":"Karnieli","first_name":"Aviv","full_name":"Karnieli, Aviv"},{"full_name":"Miller, David A. B.","last_name":"Miller","first_name":"David A. B."},{"full_name":"Fan, Shanhui","first_name":"Shanhui","last_name":"Fan"}],"publisher":"American Chemical Society","page":"3285-3294","abstract":[{"text":"Entanglement is a unique feature of quantum mechanics. In coupled systems of light and matter, entanglement manifests itself in the linear superposition of multipartite quantum states (e.g., parametrized by the multiple spatial, spectral, or temporal degrees of freedom of a light field). In bipartite systems, the Schmidt decomposition provides a modal decomposition of the entanglement structure over independent, separable states. Although ubiquitous as a mathematical tool to describe and measure entanglement, there exists no general efficient experimental method to decompose a bipartite quantum state onto its Schmidt modes. Here, we propose a method that relies on bipartite self-configuring optics that automatically ``learns'' the Schmidt decomposition of an arbitrary pure quantum state. Our method is agnostic to the degrees of freedom over which quantum entanglement is distributed and can reconstruct the Schmidt modes and values by variational optimization of the network's output powers or coincidences. We illustrate our method with numerical examples of spectral entanglement analysis for biphotons generated via spontaneous parametric down conversion and provide experimental guidelines for its realization, including the influence of losses and impurities. Our method provides a versatile and scalable way of analyzing entanglement in bipartite integrated quantum photonic systems. ","lang":"eng"}],"external_id":{"arxiv":["2407.16849"]},"article_type":"original","keyword":["integrated photonics","spontaneous parametric down conversion","entanglement","quantum teleportation","reconfigurable optics"],"OA_type":"green","issue":"6","arxiv":1,"title":"Automated modal analysis of entanglement with bipartite self-configuring optics","article_processing_charge":"No","publication_status":"published","date_created":"2026-03-30T12:22:47Z","oa_version":"Preprint"},{"publication_identifier":{"eissn":["2047-7538"]},"month":"04","year":"2025","OA_place":"publisher","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","_id":"21536","date_updated":"2026-04-27T09:13:21Z","article_number":"158","date_published":"2025-04-14T00:00:00Z","main_file_link":[{"url":"https://doi.org/10.1038/s41377-025-01836-8","open_access":"1"}],"day":"14","doi":"10.1038/s41377-025-01836-8","DOAJ_listed":"1","language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":"        14","publication":"Light: Science & Applications","ddc":["530"],"volume":14,"citation":{"ista":"Min S, Choi S, Pajovic S, Vaidya S, Rivera N, Fan S, Soljačić M, Roques-Carmes C. 2025. End-to-end design of multicolor scintillators for enhanced energy resolution in X-ray imaging. Light: Science &#38; Applications. 14, 158.","apa":"Min, S., Choi, S., Pajovic, S., Vaidya, S., Rivera, N., Fan, S., … Roques-Carmes, C. (2025). End-to-end design of multicolor scintillators for enhanced energy resolution in X-ray imaging. <i>Light: Science &#38; Applications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41377-025-01836-8\">https://doi.org/10.1038/s41377-025-01836-8</a>","mla":"Min, Seokhwan, et al. “End-to-End Design of Multicolor Scintillators for Enhanced Energy Resolution in X-Ray Imaging.” <i>Light: Science &#38; Applications</i>, vol. 14, 158, Springer Nature, 2025, doi:<a href=\"https://doi.org/10.1038/s41377-025-01836-8\">10.1038/s41377-025-01836-8</a>.","chicago":"Min, Seokhwan, Seou Choi, Simo Pajovic, Sachin Vaidya, Nicholas Rivera, Shanhui Fan, Marin Soljačić, and Charles Roques-Carmes. “End-to-End Design of Multicolor Scintillators for Enhanced Energy Resolution in X-Ray Imaging.” <i>Light: Science &#38; Applications</i>. Springer Nature, 2025. <a href=\"https://doi.org/10.1038/s41377-025-01836-8\">https://doi.org/10.1038/s41377-025-01836-8</a>.","short":"S. Min, S. Choi, S. Pajovic, S. Vaidya, N. Rivera, S. Fan, M. Soljačić, C. Roques-Carmes, Light: Science &#38; Applications 14 (2025).","ama":"Min S, Choi S, Pajovic S, et al. End-to-end design of multicolor scintillators for enhanced energy resolution in X-ray imaging. <i>Light: Science &#38; Applications</i>. 2025;14. doi:<a href=\"https://doi.org/10.1038/s41377-025-01836-8\">10.1038/s41377-025-01836-8</a>","ieee":"S. Min <i>et al.</i>, “End-to-end design of multicolor scintillators for enhanced energy resolution in X-ray imaging,” <i>Light: Science &#38; Applications</i>, vol. 14. Springer Nature, 2025."},"type":"journal_article","publisher":"Springer Nature","extern":"1","author":[{"first_name":"Seokhwan","last_name":"Min","full_name":"Min, Seokhwan"},{"full_name":"Choi, Seou","first_name":"Seou","last_name":"Choi"},{"last_name":"Pajovic","first_name":"Simo","full_name":"Pajovic, Simo"},{"first_name":"Sachin","last_name":"Vaidya","full_name":"Vaidya, Sachin"},{"full_name":"Rivera, Nicholas","first_name":"Nicholas","last_name":"Rivera"},{"full_name":"Fan, Shanhui","last_name":"Fan","first_name":"Shanhui"},{"full_name":"Soljačić, Marin","first_name":"Marin","last_name":"Soljačić"},{"first_name":"Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","last_name":"Roques-Carmes","full_name":"Roques-Carmes, Charles"}],"oa":1,"scopus_import":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"status":"public","oa_version":"Published Version","date_created":"2026-03-30T12:22:47Z","publication_status":"published","title":"End-to-end design of multicolor scintillators for enhanced energy resolution in X-ray imaging","article_processing_charge":"No","arxiv":1,"OA_type":"gold","article_type":"original","pmid":1,"abstract":[{"text":"Scintillators have been widely used in X-ray imaging due to their ability to convert high-energy radiation into visible light, making them essential for applications such as medical imaging and high-energy physics. Recent advances in the artificial structuring of scintillators offer new opportunities for improving the energy resolution of scintillator-based X-ray detectors. Here, we present a three-bin energy-resolved X-ray imaging framework based on a three-layer multicolor scintillator used in conjunction with a physics-aware image postprocessing algorithm. The multicolor scintillator is able to preserve X-ray energy information through the combination of emission wavelength multiplexing and energy-dependent isolation of X-ray absorption in specific layers. The dominant emission color and the radius of the spot measured by the detector are used to infer the incident X-ray energy based on prior knowledge of the energy-dependent absorption profiles of the scintillator stack. Through ab initio Monte Carlo simulations, we show that our approach can achieve an energy reconstruction accuracy of 49.7%, which is only 2% below the maximum accuracy achievable with realistic scintillators. We apply our framework to medical phantom imaging simulations where we demonstrate that it can effectively differentiate iodine and gadolinium-based contrast agents from bone, muscle, and soft tissue.","lang":"eng"}],"external_id":{"arxiv":["2410.08543"],"pmid":["40210860"]}},{"status":"public","scopus_import":"1","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"extern":"1","author":[{"first_name":"Louis","last_name":"Martin-Monier","full_name":"Martin-Monier, Louis"},{"first_name":"Simo","last_name":"Pajovic","full_name":"Pajovic, Simo"},{"first_name":"Muluneh G.","last_name":"Abebe","full_name":"Abebe, Muluneh G."},{"last_name":"Chen","first_name":"Joshua","full_name":"Chen, Joshua"},{"last_name":"Vaidya","first_name":"Sachin","full_name":"Vaidya, Sachin"},{"last_name":"Min","first_name":"Seokhwan","full_name":"Min, Seokhwan"},{"full_name":"Choi, Seou","last_name":"Choi","first_name":"Seou"},{"last_name":"Kooi","first_name":"Steven E.","full_name":"Kooi, Steven E."},{"first_name":"Bjorn","last_name":"Maes","full_name":"Maes, Bjorn"},{"full_name":"Hu, Juejun","last_name":"Hu","first_name":"Juejun"},{"full_name":"Soljačić, Marin","last_name":"Soljačić","first_name":"Marin"},{"full_name":"Roques-Carmes, Charles","first_name":"Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","last_name":"Roques-Carmes"}],"publisher":"Springer Nature","external_id":{"arxiv":["2410.07141"]},"abstract":[{"text":"Scintillators convert X-ray energy into visible light and are critical for imaging technologies. Their widespread use relies on scalable, high-quality manufacturing methods. Nanophotonic scintillators, featuring wavelength-scale nanostructures, can offer improved emission properties such as higher light yield, shorter decay times, and enhanced directionality. However, achieving scalable fabrication of these structures remains challenging. Here, we present a scalable fabrication method for large-area nanophotonic scintillators based on the self-assembly of chalcogenide glass photonic crystals. This technique enables the production of nanophotonic scintillators over wafer-scale areas, achieving a six-fold enhancement in light yield compared to unpatterned scintillators. By studying surface nanofabrication disorder, we show its impact on imaging performance and provide a route towards scintillation enhancements without compromising resolution. We demonstrate the practical applicability of our nanophotonic scintillators through X-ray imaging of biological and inorganic specimens. Our results could enable the industrial implementation of a new generation of nanophotonic-enhanced scintillators.","lang":"eng"}],"article_type":"original","OA_type":"gold","oa_version":"Published Version","date_created":"2026-03-30T12:22:47Z","publication_status":"published","article_processing_charge":"No","title":"Large-scale self-assembled nanophotonic scintillators for X-ray imaging","arxiv":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"21541","date_updated":"2026-04-27T07:17:31Z","year":"2025","OA_place":"publisher","month":"07","publication_identifier":{"eissn":["2041-1723"]},"ddc":["530"],"volume":16,"type":"journal_article","citation":{"ista":"Martin-Monier L, Pajovic S, Abebe MG, Chen J, Vaidya S, Min S, Choi S, Kooi SE, Maes B, Hu J, Soljačić M, Roques-Carmes C. 2025. Large-scale self-assembled nanophotonic scintillators for X-ray imaging. Nature Communications. 16, 5750.","apa":"Martin-Monier, L., Pajovic, S., Abebe, M. G., Chen, J., Vaidya, S., Min, S., … Roques-Carmes, C. (2025). Large-scale self-assembled nanophotonic scintillators for X-ray imaging. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-025-60953-5\">https://doi.org/10.1038/s41467-025-60953-5</a>","chicago":"Martin-Monier, Louis, Simo Pajovic, Muluneh G. Abebe, Joshua Chen, Sachin Vaidya, Seokhwan Min, Seou Choi, et al. “Large-Scale Self-Assembled Nanophotonic Scintillators for X-Ray Imaging.” <i>Nature Communications</i>. Springer Nature, 2025. <a href=\"https://doi.org/10.1038/s41467-025-60953-5\">https://doi.org/10.1038/s41467-025-60953-5</a>.","mla":"Martin-Monier, Louis, et al. “Large-Scale Self-Assembled Nanophotonic Scintillators for X-Ray Imaging.” <i>Nature Communications</i>, vol. 16, 5750, Springer Nature, 2025, doi:<a href=\"https://doi.org/10.1038/s41467-025-60953-5\">10.1038/s41467-025-60953-5</a>.","ama":"Martin-Monier L, Pajovic S, Abebe MG, et al. Large-scale self-assembled nanophotonic scintillators for X-ray imaging. <i>Nature Communications</i>. 2025;16. doi:<a href=\"https://doi.org/10.1038/s41467-025-60953-5\">10.1038/s41467-025-60953-5</a>","short":"L. Martin-Monier, S. Pajovic, M.G. Abebe, J. Chen, S. Vaidya, S. Min, S. Choi, S.E. Kooi, B. Maes, J. Hu, M. Soljačić, C. Roques-Carmes, Nature Communications 16 (2025).","ieee":"L. Martin-Monier <i>et al.</i>, “Large-scale self-assembled nanophotonic scintillators for X-ray imaging,” <i>Nature Communications</i>, vol. 16. Springer Nature, 2025."},"language":[{"iso":"eng"}],"quality_controlled":"1","intvolume":"        16","publication":"Nature Communications","doi":"10.1038/s41467-025-60953-5","DOAJ_listed":"1","date_published":"2025-07-01T00:00:00Z","article_number":"5750","main_file_link":[{"url":"https://doi.org/10.1038/s41467-025-60953-5"}],"day":"01"},{"article_type":"original","pmid":1,"external_id":{"pmid":["40813767"]},"abstract":[{"text":"Nonlinear optics has become the workhorse for countless applications in classical and quantum optics, from optical bistability to single photon pair generation. However, the intrinsic weakness of optical nonlinearity and reciprocity of nonlinear interactions generally places stringent limits on the efficiency of nonlinear optical processes and their ability to be tailored for advanced applications in multimode systems. Here, motivated by recent advances in using non-Hermitian photonics and gain/loss engineering to enable non-reciprocal light transport, we explore how the interplay between non-Hermiticity and optical nonlinearity leads to a fundamentally new regime of nonlinear frequency conversion. We show how non-Hermitian coupling between discrete frequency modes can result in non-reciprocal flow of energy in a frequency dimension, closely resembling the non-Hermitian skin effect (NHSE). Applying our theory to a multimode nonlinear cavity supporting cascaded nonlinear processes, we demonstrate chiral energy flow in a frequency dimension, leading to long-range frequency shifts of quasi-continuous wave sources, shaped frequency combs robust to defects and disorder, terahertz (THz) generation far exceeding the Manley-Rowe limit, and nonlinear multimodal limit cycles for multi-frequency pump-probe spectroscopy.","lang":"eng"}],"oa_version":"Published Version","date_created":"2026-03-30T12:22:47Z","publication_status":"published","article_processing_charge":"No","title":"Non-reciprocal frequency conversion in a non-Hermitian multimode nonlinear system","OA_type":"gold","scopus_import":"1","oa":1,"tmp":{"short":"CC BY-NC-ND (4.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)"},"status":"public","publisher":"Springer Nature","author":[{"first_name":"Sahil","last_name":"Pontula","full_name":"Pontula, Sahil"},{"full_name":"Vaidya, Sachin","last_name":"Vaidya","first_name":"Sachin"},{"full_name":"Roques-Carmes, Charles","first_name":"Charles","id":"e2e68fc9-6505-11ef-a541-eb4e72cc3e82","last_name":"Roques-Carmes"},{"last_name":"Uddin","first_name":"Shiekh Zia","full_name":"Uddin, Shiekh Zia"},{"full_name":"Soljačić, Marin","last_name":"Soljačić","first_name":"Marin"},{"full_name":"Salamin, Yannick","first_name":"Yannick","last_name":"Salamin"}],"extern":"1","quality_controlled":"1","language":[{"iso":"eng"}],"publication":"Nature Communications","intvolume":"        16","volume":16,"ddc":["530"],"citation":{"mla":"Pontula, Sahil, et al. “Non-Reciprocal Frequency Conversion in a Non-Hermitian Multimode Nonlinear System.” <i>Nature Communications</i>, vol. 16, 7544, Springer Nature, 2025, doi:<a href=\"https://doi.org/10.1038/s41467-025-62853-0\">10.1038/s41467-025-62853-0</a>.","chicago":"Pontula, Sahil, Sachin Vaidya, Charles Roques-Carmes, Shiekh Zia Uddin, Marin Soljačić, and Yannick Salamin. “Non-Reciprocal Frequency Conversion in a Non-Hermitian Multimode Nonlinear System.” <i>Nature Communications</i>. Springer Nature, 2025. <a href=\"https://doi.org/10.1038/s41467-025-62853-0\">https://doi.org/10.1038/s41467-025-62853-0</a>.","ama":"Pontula S, Vaidya S, Roques-Carmes C, Uddin SZ, Soljačić M, Salamin Y. Non-reciprocal frequency conversion in a non-Hermitian multimode nonlinear system. <i>Nature Communications</i>. 2025;16. doi:<a href=\"https://doi.org/10.1038/s41467-025-62853-0\">10.1038/s41467-025-62853-0</a>","short":"S. Pontula, S. Vaidya, C. Roques-Carmes, S.Z. Uddin, M. Soljačić, Y. Salamin, Nature Communications 16 (2025).","ieee":"S. Pontula, S. Vaidya, C. Roques-Carmes, S. Z. Uddin, M. Soljačić, and Y. Salamin, “Non-reciprocal frequency conversion in a non-Hermitian multimode nonlinear system,” <i>Nature Communications</i>, vol. 16. Springer Nature, 2025.","ista":"Pontula S, Vaidya S, Roques-Carmes C, Uddin SZ, Soljačić M, Salamin Y. 2025. Non-reciprocal frequency conversion in a non-Hermitian multimode nonlinear system. Nature Communications. 16, 7544.","apa":"Pontula, S., Vaidya, S., Roques-Carmes, C., Uddin, S. Z., Soljačić, M., &#38; Salamin, Y. (2025). Non-reciprocal frequency conversion in a non-Hermitian multimode nonlinear system. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-025-62853-0\">https://doi.org/10.1038/s41467-025-62853-0</a>"},"type":"journal_article","main_file_link":[{"url":"https://doi.org/10.1038/s41467-025-62853-0","open_access":"1"}],"article_number":"7544","date_published":"2025-08-14T00:00:00Z","day":"14","doi":"10.1038/s41467-025-62853-0","DOAJ_listed":"1","year":"2025","OA_place":"publisher","_id":"21542","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-04-27T10:06:42Z","publication_identifier":{"eissn":["2041-1723"]},"month":"08"}]