[{"file_date_updated":"2023-07-10T10:10:54Z","quality_controlled":"1","publication_status":"published","DOAJ_listed":"1","title":"Coherent optical control of a superconducting microwave cavity via electro-optical dynamical back-action","oa_version":"Published Version","pmid":1,"abstract":[{"text":"Recent quantum technologies have established precise quantum control of various microscopic systems using electromagnetic waves. Interfaces based on cryogenic cavity electro-optic systems are particularly promising, due to the direct interaction between microwave and optical fields in the quantum regime. Quantum optical control of superconducting microwave circuits has been precluded so far due to the weak electro-optical coupling as well as quasi-particles induced by the pump laser. Here we report the coherent control of a superconducting microwave cavity using laser pulses in a multimode electro-optical device at millikelvin temperature with near-unity cooperativity. Both the stationary and instantaneous responses of the microwave and optical modes comply with the coherent electro-optical interaction, and reveal only minuscule amount of excess back-action with an unanticipated time delay. Our demonstration enables wide ranges of applications beyond quantum transductions, from squeezing and quantum non-demolition measurements of microwave fields, to entanglement generation and hybrid quantum networks.","lang":"eng"}],"oa":1,"date_published":"2023-06-24T00:00:00Z","citation":{"ista":"Qiu L, Sahu R, Hease WJ, Arnold GM, Fink JM. 2023. Coherent optical control of a superconducting microwave cavity via electro-optical dynamical back-action. Nature Communications. 14, 3784.","ieee":"L. Qiu, R. Sahu, W. J. Hease, G. M. Arnold, and J. M. Fink, “Coherent optical control of a superconducting microwave cavity via electro-optical dynamical back-action,” <i>Nature Communications</i>, vol. 14. Nature Research, 2023.","chicago":"Qiu, Liu, Rishabh Sahu, William J Hease, Georg M Arnold, and Johannes M Fink. “Coherent Optical Control of a Superconducting Microwave Cavity via Electro-Optical Dynamical Back-Action.” <i>Nature Communications</i>. Nature Research, 2023. <a href=\"https://doi.org/10.1038/s41467-023-39493-3\">https://doi.org/10.1038/s41467-023-39493-3</a>.","short":"L. Qiu, R. Sahu, W.J. Hease, G.M. Arnold, J.M. Fink, Nature Communications 14 (2023).","mla":"Qiu, Liu, et al. “Coherent Optical Control of a Superconducting Microwave Cavity via Electro-Optical Dynamical Back-Action.” <i>Nature Communications</i>, vol. 14, 3784, Nature Research, 2023, doi:<a href=\"https://doi.org/10.1038/s41467-023-39493-3\">10.1038/s41467-023-39493-3</a>.","ama":"Qiu L, Sahu R, Hease WJ, Arnold GM, Fink JM. Coherent optical control of a superconducting microwave cavity via electro-optical dynamical back-action. <i>Nature Communications</i>. 2023;14. doi:<a href=\"https://doi.org/10.1038/s41467-023-39493-3\">10.1038/s41467-023-39493-3</a>","apa":"Qiu, L., Sahu, R., Hease, W. J., Arnold, G. M., &#38; Fink, J. M. (2023). Coherent optical control of a superconducting microwave cavity via electro-optical dynamical back-action. <i>Nature Communications</i>. Nature Research. <a href=\"https://doi.org/10.1038/s41467-023-39493-3\">https://doi.org/10.1038/s41467-023-39493-3</a>"},"arxiv":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_created":"2023-07-09T22:01:11Z","doi":"10.1038/s41467-023-39493-3","author":[{"first_name":"Liu","orcid":"0000-0003-4345-4267","last_name":"Qiu","full_name":"Qiu, Liu","id":"45e99c0d-1eb1-11eb-9b96-ed8ab2983cac"},{"last_name":"Sahu","orcid":"0000-0001-6264-2162","first_name":"Rishabh","id":"47D26E34-F248-11E8-B48F-1D18A9856A87","full_name":"Sahu, Rishabh"},{"first_name":"William J","orcid":"0000-0001-9868-2166","last_name":"Hease","full_name":"Hease, William J","id":"29705398-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Arnold, Georg M","id":"3770C838-F248-11E8-B48F-1D18A9856A87","first_name":"Georg M","orcid":"0000-0003-1397-7876","last_name":"Arnold"},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","full_name":"Fink, Johannes M","last_name":"Fink","orcid":"0000-0001-8112-028X","first_name":"Johannes M"}],"_id":"13200","scopus_import":"1","OA_place":"publisher","publication_identifier":{"eissn":["2041-1723"]},"volume":14,"article_type":"original","intvolume":"        14","acknowledgement":"This work was supported by the European Research Council under grant agreement no. 758053 (ERC StG QUNNECT), the European Union’s Horizon 2020 research and innovation program under grant agreement no. 899354 (FETopen SuperQuLAN), and the Austrian Science Fund (FWF) through BeyondC (F7105). L.Q. acknowledges generous support from the ISTFELLOW programme. W.H. is the recipient of an ISTplus postdoctoral fellowship with funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement no. 754411. G.A. is the recipient of a DOC fellowship of the Austrian Academy of Sciences at IST Austria.","article_processing_charge":"Yes","publication":"Nature Communications","has_accepted_license":"1","department":[{"_id":"JoFi"}],"isi":1,"external_id":{"isi":["001018100800002"],"arxiv":["2210.12443"],"pmid":["37355691"]},"article_number":"3784","status":"public","ddc":["000"],"file":[{"creator":"alisjak","access_level":"open_access","date_created":"2023-07-10T10:10:54Z","checksum":"ec7ccd2c08f90d59cab302fd0d7776a4","file_id":"13206","file_name":"2023_NatureComms_Qiu.pdf","relation":"main_file","success":1,"file_size":1349134,"date_updated":"2023-07-10T10:10:54Z","content_type":"application/pdf"}],"date_updated":"2026-06-06T22:31:13Z","related_material":{"record":[{"id":"18871","status":"public","relation":"dissertation_contains"}]},"language":[{"iso":"eng"}],"day":"24","OA_type":"gold","publisher":"Nature Research","corr_author":"1","month":"06","project":[{"_id":"26336814-B435-11E9-9278-68D0E5697425","name":"A Fiber Optic Transceiver for Superconducting Qubits","call_identifier":"H2020","grant_number":"758053"},{"call_identifier":"H2020","name":"Quantum Local Area Networks with Superconducting Qubits","grant_number":"899354","_id":"9B868D20-BA93-11EA-9121-9846C619BF3A"},{"name":"QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits","grant_number":"F07105","_id":"bdb108fd-d553-11ed-ba76-83dc74a9864f"},{"_id":"260C2330-B435-11E9-9278-68D0E5697425","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","grant_number":"754411"},{"_id":"25681D80-B435-11E9-9278-68D0E5697425","grant_number":"291734","call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme"},{"_id":"2671EB66-B435-11E9-9278-68D0E5697425","name":"Coherent on-chip conversion of superconducting qubit signals from microwaves to optical frequencies"},{"_id":"3AC91DDA-15DF-11EA-824D-93A3E7B544D1","call_identifier":"FWF","name":"FWF Open Access Fund"}],"type":"journal_article","year":"2023","ec_funded":1,"APC_amount":"6228 EUR","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"}},{"acknowledgement":"We thank F. Hassani and M. Zemlicka for assistance\r\nwith qubit design and high power readout respectively,\r\nand P. Winkel and I. Pop at KIT for providing the JPA.\r\nThis work was supported by the European Research\r\nCouncil under grant agreement no. 758053 (ERC StG\r\nQUNNECT) and no. 101089099 (ERC CoG cQEO), the\r\nEuropean Union’s Horizon 2020 research and innovation\r\nprogram under grant agreement no. 899354 (FETopen\r\nSuperQuLAN) and the Austrian Science Fund (FWF)\r\nthrough BeyondC (grant no. F7105). L.Q. acknowledges\r\ngenerous support from the ISTFELLOW programme\r\nand G.A. is the recipient of a DOC fellowship of the\r\nAustrian Academy of Sciences at IST Austria.","citation":{"apa":"Arnold, G. M., Werner, T., Sahu, R., Kapoor, L., Qiu, L., &#38; Fink, J. M. (n.d.). All-optical single-shot readout of a superconducting qubit. <i>arXiv</i>. <a href=\"https://doi.org/10.48550/ARXIV.2310.16817\">https://doi.org/10.48550/ARXIV.2310.16817</a>","ama":"Arnold GM, Werner T, Sahu R, Kapoor L, Qiu L, Fink JM. All-optical single-shot readout of a superconducting qubit. <i>arXiv</i>. doi:<a href=\"https://doi.org/10.48550/ARXIV.2310.16817\">10.48550/ARXIV.2310.16817</a>","chicago":"Arnold, Georg M, Thomas Werner, Rishabh Sahu, Lucky Kapoor, Liu Qiu, and Johannes M Fink. “All-Optical Single-Shot Readout of a Superconducting Qubit.” <i>ArXiv</i>, n.d. <a href=\"https://doi.org/10.48550/ARXIV.2310.16817\">https://doi.org/10.48550/ARXIV.2310.16817</a>.","mla":"Arnold, Georg M., et al. “All-Optical Single-Shot Readout of a Superconducting Qubit.” <i>ArXiv</i>, doi:<a href=\"https://doi.org/10.48550/ARXIV.2310.16817\">10.48550/ARXIV.2310.16817</a>.","short":"G.M. Arnold, T. Werner, R. Sahu, L. Kapoor, L. Qiu, J.M. Fink, ArXiv (n.d.).","ieee":"G. M. Arnold, T. Werner, R. Sahu, L. Kapoor, L. Qiu, and J. M. Fink, “All-optical single-shot readout of a superconducting qubit,” <i>arXiv</i>. .","ista":"Arnold GM, Werner T, Sahu R, Kapoor L, Qiu L, Fink JM. All-optical single-shot readout of a superconducting qubit. arXiv, <a href=\"https://doi.org/10.48550/ARXIV.2310.16817\">10.48550/ARXIV.2310.16817</a>."},"arxiv":1,"oa":1,"date_published":"2023-10-25T00:00:00Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"id":"3770C838-F248-11E8-B48F-1D18A9856A87","full_name":"Arnold, Georg M","orcid":"0000-0003-1397-7876","last_name":"Arnold","first_name":"Georg M"},{"full_name":"Werner, Thomas","id":"1fcd8497-dba3-11ea-a45e-c6fbd715f7c7","first_name":"Thomas","orcid":"0009-0001-2346-5236","last_name":"Werner"},{"first_name":"Rishabh","last_name":"Sahu","orcid":"0000-0001-6264-2162","full_name":"Sahu, Rishabh","id":"47D26E34-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0001-8319-2148","last_name":"Kapoor","first_name":"Lucky","id":"84b9700b-15b2-11ec-abd3-831089e67615","full_name":"Kapoor, Lucky"},{"id":"45e99c0d-1eb1-11eb-9b96-ed8ab2983cac","full_name":"Qiu, Liu","orcid":"0000-0003-4345-4267","last_name":"Qiu","first_name":"Liu"},{"first_name":"Johannes M","orcid":"0000-0001-8112-028X","last_name":"Fink","full_name":"Fink, Johannes M","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87"}],"date_created":"2025-01-29T11:11:34Z","doi":"10.48550/ARXIV.2310.16817","OA_place":"repository","_id":"18953","publication_status":"draft","oa_version":"Preprint","title":"All-optical single-shot readout of a superconducting qubit","abstract":[{"lang":"eng","text":"The rapid development of superconducting quantum hardware is expected to run into significant I/O restrictions due to the need for large-scale error correction in a cryogenic environment. Classical data centers rely on fiber-optic interconnects to remove similar networking bottlenecks and to allow for reconfigurable, software-defined infrastructures. In the same spirit, ultra-cold electro-optic links have been proposed and used to generate qubit control signals, or to replace cryogenic readout electronics. So far, the latter suffered from either low efficiency, low bandwidth and the need for additional microwave drives, or breaking of Cooper pairs and qubit states. In this work we realize electro-optic microwave photonics at millikelvin temperatures to implement a radio-over-fiber qubit readout that does not require any active or passive cryogenic microwave equipment. We demonstrate all-optical single-shot-readout by means of the Jaynes-Cummings nonlinearity in a circulator-free readout scheme. Importantly, we do not observe any direct radiation impact on the qubit state as verified with high-fidelity quantum-non-demolition measurements despite the absence of shielding elements. This compatibility between superconducting circuits and telecom wavelength light is not only a prerequisite to establish modular quantum networks, it is also relevant for multiplexed readout of superconducting photon detectors and classical superconducting logic. Moreover, this experiment showcases the potential of electro-optic radiometry in harsh environments - an electronics-free sensing principle that extends into the THz regime with applications in radio astronomy, planetary missions and earth observation."}],"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2310.16817","open_access":"1"}],"type":"preprint","project":[{"call_identifier":"H2020","name":"A Fiber Optic Transceiver for Superconducting Qubits","grant_number":"758053","_id":"26336814-B435-11E9-9278-68D0E5697425"},{"_id":"bdadfa0d-d553-11ed-ba76-fb85edbd456a","name":"Cavity Quantum Electro Optics: Microwave photonics with nonclassical states","grant_number":"101089099"},{"_id":"9B868D20-BA93-11EA-9121-9846C619BF3A","name":"Quantum Local Area Networks with Superconducting Qubits","call_identifier":"H2020","grant_number":"899354"},{"_id":"2671EB66-B435-11E9-9278-68D0E5697425","name":"Coherent on-chip conversion of superconducting qubit signals from microwaves to optical frequencies"},{"_id":"bdb108fd-d553-11ed-ba76-83dc74a9864f","name":"QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits","grant_number":"F07105"}],"year":"2023","ec_funded":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"day":"25","month":"10","corr_author":"1","date_updated":"2026-06-06T22:31:12Z","language":[{"iso":"eng"}],"related_material":{"record":[{"id":"19073","status":"public","relation":"later_version"},{"relation":"dissertation_contains","status":"public","id":"18871"}]},"article_processing_charge":"No","department":[{"_id":"JoFi"}],"publication":"arXiv","external_id":{"arxiv":["2310.16817"]},"status":"public"},{"date_created":"2023-01-12T12:09:17Z","author":[{"id":"428A94B0-F248-11E8-B48F-1D18A9856A87","full_name":"Shipilina, Daria","orcid":"0000-0002-1145-9226","last_name":"Shipilina","first_name":"Daria"},{"first_name":"Arka","orcid":"0000-0002-4530-8469","last_name":"Pal","full_name":"Pal, Arka","id":"6AAB2240-CA9A-11E9-9C1A-D9D1E5697425"},{"full_name":"Stankowski, Sean","id":"43161670-5719-11EA-8025-FABC3DDC885E","first_name":"Sean","last_name":"Stankowski"},{"first_name":"Yingguang Frank","last_name":"Chan","full_name":"Chan, Yingguang Frank"},{"orcid":"0000-0002-8548-5240","last_name":"Barton","first_name":"Nicholas H","id":"4880FE40-F248-11E8-B48F-1D18A9856A87","full_name":"Barton, Nicholas H"}],"doi":"10.1111/mec.16793","scopus_import":"1","_id":"12159","citation":{"chicago":"Shipilina, Daria, Arka Pal, Sean Stankowski, Yingguang Frank Chan, and Nicholas H Barton. “On the Origin and Structure of Haplotype Blocks.” <i>Molecular Ecology</i>. Wiley, 2023. <a href=\"https://doi.org/10.1111/mec.16793\">https://doi.org/10.1111/mec.16793</a>.","mla":"Shipilina, Daria, et al. “On the Origin and Structure of Haplotype Blocks.” <i>Molecular Ecology</i>, vol. 32, no. 6, Wiley, 2023, pp. 1441–57, doi:<a href=\"https://doi.org/10.1111/mec.16793\">10.1111/mec.16793</a>.","short":"D. Shipilina, A. Pal, S. Stankowski, Y.F. Chan, N.H. Barton, Molecular Ecology 32 (2023) 1441–1457.","ama":"Shipilina D, Pal A, Stankowski S, Chan YF, Barton NH. On the origin and structure of haplotype blocks. <i>Molecular Ecology</i>. 2023;32(6):1441-1457. doi:<a href=\"https://doi.org/10.1111/mec.16793\">10.1111/mec.16793</a>","apa":"Shipilina, D., Pal, A., Stankowski, S., Chan, Y. F., &#38; Barton, N. H. (2023). On the origin and structure of haplotype blocks. <i>Molecular Ecology</i>. Wiley. <a href=\"https://doi.org/10.1111/mec.16793\">https://doi.org/10.1111/mec.16793</a>","ista":"Shipilina D, Pal A, Stankowski S, Chan YF, Barton NH. 2023. On the origin and structure of haplotype blocks. Molecular Ecology. 32(6), 1441–1457.","ieee":"D. Shipilina, A. Pal, S. Stankowski, Y. F. Chan, and N. H. Barton, “On the origin and structure of haplotype blocks,” <i>Molecular Ecology</i>, vol. 32, no. 6. Wiley, pp. 1441–1457, 2023."},"date_published":"2023-03-01T00:00:00Z","oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","acknowledgement":"We thank the Barton group for useful discussion and feedback during the writing of this article. Comments from Roger Butlin, Molly Schumer's Group, the tskit development team, editors and three reviewers greatly improved the manuscript. Funding was provided by SCAS (Natural Sciences Programme, Knut and Alice Wallenberg Foundation), an FWF Wittgenstein grant (PT1001Z211), an FWF standalone grant (grant P 32166), and an ERC Advanced Grant. YFC was supported by the Max Planck Society and an ERC Proof of Concept Grant #101069216 (HAPLOTAGGING).","intvolume":"        32","article_type":"original","volume":32,"publication_identifier":{"eissn":["1365-294X"],"issn":["0962-1083"]},"page":"1441-1457","quality_controlled":"1","file_date_updated":"2023-08-16T08:15:41Z","abstract":[{"lang":"eng","text":"The term “haplotype block” is commonly used in the developing field of haplotype-based inference methods. We argue that the term should be defined based on the structure of the Ancestral Recombination Graph (ARG), which contains complete information on the ancestry of a sample. We use simulated examples to demonstrate key features of the relationship between haplotype blocks and ancestral structure, emphasizing the stochasticity of the processes that generate them. Even the simplest cases of neutrality or of a “hard” selective sweep produce a rich structure, often missed by commonly used statistics. We highlight a number of novel methods for inferring haplotype structure, based on the full ARG, or on a sequence of trees, and illustrate how they can be used to define haplotype blocks using an empirical data set. While the advent of new, computationally efficient methods makes it possible to apply these concepts broadly, they (and additional new methods) could benefit from adding features to explore haplotype blocks, as we define them. Understanding and applying the concept of the haplotype block will be essential to fully exploit long and linked-read sequencing technologies."}],"pmid":1,"publication_status":"published","oa_version":"Published Version","title":"On the origin and structure of haplotype blocks","publisher":"Wiley","month":"03","corr_author":"1","day":"01","issue":"6","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"keyword":["Genetics","Ecology","Evolution","Behavior and Systematics"],"type":"journal_article","project":[{"name":"Snapdragon Speciation","grant_number":"P32166","_id":"05959E1C-7A3F-11EA-A408-12923DDC885E"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"Formal methods for the design and analysis of complex systems","call_identifier":"FWF","grant_number":"Z211"},{"name":"Understanding the evolution of continuous genomes","grant_number":"101055327","_id":"bd6958e0-d553-11ed-ba76-86eba6a76c00"}],"year":"2023","external_id":{"isi":["000900762000001"],"pmid":["36433653"]},"status":"public","article_processing_charge":"Yes (via OA deal)","isi":1,"has_accepted_license":"1","department":[{"_id":"NiBa"}],"publication":"Molecular Ecology","language":[{"iso":"eng"}],"related_material":{"record":[{"id":"20694","status":"public","relation":"dissertation_contains"}]},"date_updated":"2026-06-06T22:31:13Z","file":[{"access_level":"open_access","creator":"dernst","file_name":"2023_MolecularEcology_Shipilina.pdf","date_created":"2023-08-16T08:15:41Z","file_id":"14062","checksum":"b10e0f8fa3dc4d72aaf77a557200978a","relation":"main_file","success":1,"file_size":7144607,"date_updated":"2023-08-16T08:15:41Z","content_type":"application/pdf"}],"ddc":["570"]},{"ec_funded":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"keyword":["General Physics and Astronomy"],"project":[{"_id":"0aa3608a-070f-11eb-9043-e9cd8a2bd931","grant_number":"P33692","name":"Cavity electromechanics across a quantum phase transition"},{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425"},{"_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2","name":"Protected states of quantum matter"}],"type":"journal_article","year":"2023","publisher":"Springer Nature","month":"11","corr_author":"1","day":"01","language":[{"iso":"eng"}],"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"17881"}]},"ddc":["530"],"file":[{"relation":"main_file","date_created":"2024-01-29T11:25:38Z","file_name":"2023_NaturePhysics_Mukhopadhyay.pdf","file_id":"14899","checksum":"1fc86d71bfbf836e221c1e925343adc5","access_level":"open_access","creator":"dernst","date_updated":"2024-01-29T11:25:38Z","file_size":1977706,"content_type":"application/pdf","success":1}],"date_updated":"2026-06-06T22:31:15Z","external_id":{"isi":["001054563800006"]},"status":"public","article_processing_charge":"Yes (in subscription journal)","has_accepted_license":"1","isi":1,"department":[{"_id":"GradSch"},{"_id":"AnHi"},{"_id":"JoFi"}],"publication":"Nature Physics","acknowledgement":"We thank D. Haviland, J. Pekola, C. Ciuti, A. Bubis and A. Shnirman for helpful feedback on the paper. This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the Nanofabrication Facility. Work supported by the Austrian FWF grant P33692-N (S.M., J.S. and A.P.H.), the European Union’s Horizon 2020 Research and Innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411 (J.S.) and a NOMIS foundation research grant (J.M.F. and A.P.H.).","intvolume":"        19","article_type":"original","publication_identifier":{"issn":["1745-2473"],"eissn":["1745-2481"]},"volume":19,"date_created":"2023-08-11T07:41:17Z","author":[{"id":"FDE60288-A89D-11E9-947F-1AF6E5697425","full_name":"Mukhopadhyay, Soham","last_name":"Mukhopadhyay","orcid":"0000-0001-5263-5559","first_name":"Soham"},{"last_name":"Senior","orcid":"0000-0002-0672-9295","first_name":"Jorden L","id":"5479D234-2D30-11EA-89CC-40953DDC885E","full_name":"Senior, Jorden L"},{"last_name":"Saez Mollejo","first_name":"Jaime","id":"e0390f72-f6e0-11ea-865d-862393336714","full_name":"Saez Mollejo, Jaime"},{"id":"4D495994-AE37-11E9-AC72-31CAE5697425","full_name":"Puglia, Denise","last_name":"Puglia","orcid":"0000-0003-1144-2763","first_name":"Denise"},{"last_name":"Zemlicka","orcid":"0009-0005-0878-3032","first_name":"Martin","id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87","full_name":"Zemlicka, Martin"},{"first_name":"Johannes M","last_name":"Fink","orcid":"0000-0001-8112-028X","full_name":"Fink, Johannes M","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Andrew P","last_name":"Higginbotham","orcid":"0000-0003-2607-2363","full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87"}],"doi":"10.1038/s41567-023-02161-w","scopus_import":"1","_id":"14032","citation":{"ista":"Mukhopadhyay S, Senior JL, Saez Mollejo J, Puglia D, Zemlicka M, Fink JM, Higginbotham AP. 2023. Superconductivity from a melted insulator in Josephson junction arrays. Nature Physics. 19, 1630–1635.","ieee":"S. Mukhopadhyay <i>et al.</i>, “Superconductivity from a melted insulator in Josephson junction arrays,” <i>Nature Physics</i>, vol. 19. Springer Nature, pp. 1630–1635, 2023.","mla":"Mukhopadhyay, Soham, et al. “Superconductivity from a Melted Insulator in Josephson Junction Arrays.” <i>Nature Physics</i>, vol. 19, Springer Nature, 2023, pp. 1630–35, doi:<a href=\"https://doi.org/10.1038/s41567-023-02161-w\">10.1038/s41567-023-02161-w</a>.","short":"S. Mukhopadhyay, J.L. Senior, J. Saez Mollejo, D. Puglia, M. Zemlicka, J.M. Fink, A.P. Higginbotham, Nature Physics 19 (2023) 1630–1635.","chicago":"Mukhopadhyay, Soham, Jorden L Senior, Jaime Saez Mollejo, Denise Puglia, Martin Zemlicka, Johannes M Fink, and Andrew P Higginbotham. “Superconductivity from a Melted Insulator in Josephson Junction Arrays.” <i>Nature Physics</i>. Springer Nature, 2023. <a href=\"https://doi.org/10.1038/s41567-023-02161-w\">https://doi.org/10.1038/s41567-023-02161-w</a>.","ama":"Mukhopadhyay S, Senior JL, Saez Mollejo J, et al. Superconductivity from a melted insulator in Josephson junction arrays. <i>Nature Physics</i>. 2023;19:1630-1635. doi:<a href=\"https://doi.org/10.1038/s41567-023-02161-w\">10.1038/s41567-023-02161-w</a>","apa":"Mukhopadhyay, S., Senior, J. L., Saez Mollejo, J., Puglia, D., Zemlicka, M., Fink, J. M., &#38; Higginbotham, A. P. (2023). Superconductivity from a melted insulator in Josephson junction arrays. <i>Nature Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41567-023-02161-w\">https://doi.org/10.1038/s41567-023-02161-w</a>"},"date_published":"2023-11-01T00:00:00Z","oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"abstract":[{"text":"Arrays of Josephson junctions are governed by a competition between superconductivity and repulsive Coulomb interactions, and are expected to exhibit diverging low-temperature resistance when interactions exceed a critical level. Here we report a study of the transport and microwave response of Josephson arrays with interactions exceeding this level. Contrary to expectations, we observe that the array resistance drops dramatically as the temperature is decreased—reminiscent of superconducting behaviour—and then saturates at low temperature. Applying a magnetic field, we eventually observe a transition to a highly resistive regime. These observations can be understood within a theoretical picture that accounts for the effect of thermal fluctuations on the insulating phase. On the basis of the agreement between experiment and theory, we suggest that apparent superconductivity in our Josephson arrays arises from melting the zero-temperature insulator.","lang":"eng"}],"publication_status":"published","title":"Superconductivity from a melted insulator in Josephson junction arrays","oa_version":"Published Version","page":"1630-1635","file_date_updated":"2024-01-29T11:25:38Z","quality_controlled":"1"},{"file_date_updated":"2023-06-06T07:31:20Z","quality_controlled":"1","title":"Tunable directional photon scattering from a pair of superconducting qubits","oa_version":"Published Version","publication_status":"published","abstract":[{"text":"The ability to control the direction of scattered light is crucial to provide flexibility and scalability for a wide range of on-chip applications, such as integrated photonics, quantum information processing, and nonlinear optics. Tunable directionality can be achieved by applying external magnetic fields that modify optical selection rules, by using nonlinear effects, or interactions with vibrations. However, these approaches are less suitable to control microwave photon propagation inside integrated superconducting quantum devices. Here, we demonstrate on-demand tunable directional scattering based on two periodically modulated transmon qubits coupled to a transmission line at a fixed distance. By changing the relative phase between the modulation tones, we realize unidirectional forward or backward photon scattering. Such an in-situ switchable mirror represents a versatile tool for intra- and inter-chip microwave photonic processors. In the future, a lattice of qubits can be used to realize topological circuits that exhibit strong nonreciprocity or chirality.","lang":"eng"}],"pmid":1,"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_published":"2023-05-24T00:00:00Z","oa":1,"arxiv":1,"citation":{"ama":"Redchenko E, Poshakinskiy AV, Sett R, Zemlicka M, Poddubny AN, Fink JM. Tunable directional photon scattering from a pair of superconducting qubits. <i>Nature Communications</i>. 2023;14. doi:<a href=\"https://doi.org/10.1038/s41467-023-38761-6\">10.1038/s41467-023-38761-6</a>","mla":"Redchenko, Elena, et al. “Tunable Directional Photon Scattering from a Pair of Superconducting Qubits.” <i>Nature Communications</i>, vol. 14, 2998, Springer Nature, 2023, doi:<a href=\"https://doi.org/10.1038/s41467-023-38761-6\">10.1038/s41467-023-38761-6</a>.","chicago":"Redchenko, Elena, Alexander V. Poshakinskiy, Riya Sett, Martin Zemlicka, Alexander N. Poddubny, and Johannes M Fink. “Tunable Directional Photon Scattering from a Pair of Superconducting Qubits.” <i>Nature Communications</i>. Springer Nature, 2023. <a href=\"https://doi.org/10.1038/s41467-023-38761-6\">https://doi.org/10.1038/s41467-023-38761-6</a>.","short":"E. Redchenko, A.V. Poshakinskiy, R. Sett, M. Zemlicka, A.N. Poddubny, J.M. Fink, Nature Communications 14 (2023).","apa":"Redchenko, E., Poshakinskiy, A. V., Sett, R., Zemlicka, M., Poddubny, A. N., &#38; Fink, J. M. (2023). Tunable directional photon scattering from a pair of superconducting qubits. <i>Nature Communications</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s41467-023-38761-6\">https://doi.org/10.1038/s41467-023-38761-6</a>","ista":"Redchenko E, Poshakinskiy AV, Sett R, Zemlicka M, Poddubny AN, Fink JM. 2023. Tunable directional photon scattering from a pair of superconducting qubits. Nature Communications. 14, 2998.","ieee":"E. Redchenko, A. V. Poshakinskiy, R. Sett, M. Zemlicka, A. N. Poddubny, and J. M. Fink, “Tunable directional photon scattering from a pair of superconducting qubits,” <i>Nature Communications</i>, vol. 14. Springer Nature, 2023."},"_id":"13117","scopus_import":"1","doi":"10.1038/s41467-023-38761-6","date_created":"2023-06-04T22:01:02Z","author":[{"first_name":"Elena","last_name":"Redchenko","full_name":"Redchenko, Elena","id":"2C21D6E8-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Poshakinskiy, Alexander V.","last_name":"Poshakinskiy","first_name":"Alexander V."},{"id":"2E6D040E-F248-11E8-B48F-1D18A9856A87","full_name":"Sett, Riya","last_name":"Sett","orcid":"0000-0001-7641-8348","first_name":"Riya"},{"first_name":"Martin","orcid":"0009-0005-0878-3032","last_name":"Zemlicka","full_name":"Zemlicka, Martin","id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Poddubny, Alexander N.","last_name":"Poddubny","first_name":"Alexander N."},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X","last_name":"Fink","first_name":"Johannes M"}],"publication_identifier":{"eissn":["2041-1723"]},"volume":14,"article_type":"original","intvolume":"        14","acknowledgement":"The authors thank W.D. Oliver for discussions, L. Drmic and P. Zielinski for software development, and the MIBA workshop and the IST nanofabrication facility for technical support. This work was supported by the Austrian Science Fund (FWF) through BeyondC (F7105) and IST Austria. E.R. is the recipient of a DOC fellowship of the Austrian Academy of Sciences at IST Austria. J.M.F. and M.Z. acknowledge support from the European Research Council under grant agreement No 758053 (ERC StG QUNNECT) and a NOMIS foundation research grant. The work of A.N.P. and A.V.P. has been supported by the Russian Science Foundation under the grant No 20-12-00194.","publication":"Nature Communications","has_accepted_license":"1","isi":1,"department":[{"_id":"JoFi"}],"article_processing_charge":"No","status":"public","external_id":{"arxiv":["2205.03293"],"isi":["001001099700002"],"pmid":["37225689"]},"article_number":"2998","ddc":["530"],"file":[{"success":1,"content_type":"application/pdf","date_updated":"2023-06-06T07:31:20Z","file_size":1654389,"relation":"main_file","access_level":"open_access","creator":"dernst","file_id":"13123","checksum":"a857df40f0882859c48a1ff1e2001ec2","date_created":"2023-06-06T07:31:20Z","file_name":"2023_NaturePhysics_Redchenko.pdf"}],"date_updated":"2026-06-06T22:31:16Z","related_material":{"record":[{"relation":"research_data","status":"public","id":"13124"},{"id":"19533","status":"public","relation":"dissertation_contains"}]},"language":[{"iso":"eng"}],"day":"24","corr_author":"1","month":"05","publisher":"Springer Nature","year":"2023","project":[{"grant_number":"758053","call_identifier":"H2020","name":"A Fiber Optic Transceiver for Superconducting Qubits","_id":"26336814-B435-11E9-9278-68D0E5697425"},{"name":"Controllable Collective States of Superconducting Qubit Ensembles","_id":"26B354CA-B435-11E9-9278-68D0E5697425"},{"_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2","name":"Protected states of quantum matter"},{"_id":"bdb108fd-d553-11ed-ba76-83dc74a9864f","name":"QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits","grant_number":"F07105"}],"type":"journal_article","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"ec_funded":1}]