[{"issue":"7","quality_controlled":"1","language":[{"iso":"eng"}],"OA_place":"publisher","DOAJ_listed":"1","department":[{"_id":"MaSe"},{"_id":"AnHi"},{"_id":"GeKa"}],"oa_version":"Published Version","oa":1,"date_created":"2026-02-22T20:47:38Z","doi":"10.1126/sciadv.ady7222","publication_identifier":{"eissn":["2375-2548"]},"_id":"21340","acknowledgement":"We thank V. Vitelli, M. Fruchart, and A. Burshstein for helpful input. We acknowledge technical support from the Nanofabrication Facility and the MIBA machine shop at IST Austria. This research was supported in part by grant NSF PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP), by the Austrian Science Fund (FWF) SFB F86, and by the NOMIS foundation.","citation":{"apa":"Bubis, A., Vigliotti, L., Serbyn, M., & Higginbotham, A. P. (2026). Non-equilibrium plasmon liquid in a Josephson junction chain. Science Advances. American Association for the Advancement of Science. https://doi.org/10.1126/sciadv.ady7222","ista":"Bubis A, Vigliotti L, Serbyn M, Higginbotham AP. 2026. Non-equilibrium plasmon liquid in a Josephson junction chain. Science Advances. 12(7), eady7222.","chicago":"Bubis, Anton, Lucia Vigliotti, Maksym Serbyn, and Andrew P Higginbotham. “Non-Equilibrium Plasmon Liquid in a Josephson Junction Chain.” Science Advances. American Association for the Advancement of Science, 2026. https://doi.org/10.1126/sciadv.ady7222.","ama":"Bubis A, Vigliotti L, Serbyn M, Higginbotham AP. Non-equilibrium plasmon liquid in a Josephson junction chain. Science Advances. 2026;12(7). doi:10.1126/sciadv.ady7222","ieee":"A. Bubis, L. Vigliotti, M. Serbyn, and A. P. Higginbotham, “Non-equilibrium plasmon liquid in a Josephson junction chain,” Science Advances, vol. 12, no. 7. American Association for the Advancement of Science, 2026.","mla":"Bubis, Anton, et al. “Non-Equilibrium Plasmon Liquid in a Josephson Junction Chain.” Science Advances, vol. 12, no. 7, eady7222, American Association for the Advancement of Science, 2026, doi:10.1126/sciadv.ady7222.","short":"A. Bubis, L. Vigliotti, M. Serbyn, A.P. Higginbotham, Science Advances 12 (2026)."},"month":"02","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"journal_article","arxiv":1,"acknowledged_ssus":[{"_id":"NanoFab"},{"_id":"M-Shop"}],"article_processing_charge":"Yes","external_id":{"arxiv":["2504.09721"]},"file_date_updated":"2026-02-24T07:23:32Z","publication":"Science Advances","abstract":[{"lang":"eng","text":"Equilibrium quantum systems are often described by a gas of weakly interacting normal modes. Bringing such systems far from equilibrium, however, can drastically enhance mode-to-mode interactions. Understanding the resulting liquid is a fundamental question for quantum statistical mechanics and a practical question for engineering driven quantum devices. To tackle this question, we probe the non-equilibrium kinetics of one-dimensional plasmons in a long chain of Josephson junctions. We introduce multimode spectroscopy to controllably study the departure from equilibrium, witnessing the evolution from pairwise coupling between plasma modes at weak driving to dramatic, high-order, cascaded couplings at strong driving. Scaling to many-mode drives, we stimulate interactions between hundreds of modes, resulting in near-continuum internal dynamics. Imaging the resulting non-equilibrium plasmon populations, we then resolve the nonlocal redistribution of energy in the response to a weak perturbation—an explicit verification of the emergence of a strongly interacting, non-equilibrium liquid of plasmons."}],"volume":12,"article_number":"eady7222","title":"Non-equilibrium plasmon liquid in a Josephson junction chain","day":"13","PlanS_conform":"1","year":"2026","file":[{"creator":"dernst","file_size":2775975,"content_type":"application/pdf","date_updated":"2026-02-24T07:23:32Z","checksum":"8402f322f8f0e858b1d9aac57e306e31","date_created":"2026-02-24T07:23:32Z","relation":"main_file","access_level":"open_access","success":1,"file_name":"2026_ScienceAdv_Bubis.pdf","file_id":"21353"}],"license":"https://creativecommons.org/licenses/by/4.0/","status":"public","publication_status":"published","publisher":"American Association for the Advancement of Science","article_type":"original","date_updated":"2026-02-24T07:25:34Z","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"intvolume":" 12","has_accepted_license":"1","ddc":["530"],"date_published":"2026-02-13T00:00:00Z","OA_type":"gold","corr_author":"1","author":[{"full_name":"Bubis, Anton","id":"1f6212b5-f795-11ec-9c0c-de4780302890","first_name":"Anton","last_name":"Bubis"},{"id":"539e1e1a-e604-11ee-a1df-f02b018e5c8c","full_name":"Vigliotti, Lucia","last_name":"Vigliotti","first_name":"Lucia"},{"first_name":"Maksym","last_name":"Serbyn","orcid":"0000-0002-2399-5827","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87"},{"id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","full_name":"Higginbotham, Andrew P","orcid":"0000-0003-2607-2363","last_name":"Higginbotham","first_name":"Andrew P"}]},{"day":"06","year":"2025","publication_status":"published","status":"public","publisher":"American Chemical Society","article_type":"original","date_updated":"2025-09-30T10:29:58Z","isi":1,"intvolume":" 25","date_published":"2025-02-06T00:00:00Z","corr_author":"1","OA_type":"green","author":[{"last_name":"Puglia","first_name":"Denise","id":"4D495994-AE37-11E9-AC72-31CAE5697425","full_name":"Puglia, Denise","orcid":"0000-0003-1144-2763"},{"last_name":"Odessey","first_name":"Rachel H","id":"9a7a5123-8972-11ed-ae7b-dd1f2af457bd","full_name":"Odessey, Rachel H"},{"last_name":"Burns","first_name":"Peter","full_name":"Burns, Peter"},{"full_name":"Luhmann, Niklas","first_name":"Niklas","last_name":"Luhmann"},{"full_name":"Schmid, Silvan","last_name":"Schmid","first_name":"Silvan"},{"id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","full_name":"Higginbotham, Andrew P","orcid":"0000-0003-2607-2363","last_name":"Higginbotham","first_name":"Andrew P"}],"quality_controlled":"1","language":[{"iso":"eng"}],"issue":"7","OA_place":"repository","department":[{"_id":"AnHi"}],"oa":1,"oa_version":"Preprint","_id":"19026","publication_identifier":{"issn":["1530-6984"],"eissn":["1530-6992"]},"related_material":{"record":[{"status":"public","relation":"earlier_version","id":"18143"}]},"doi":"10.1021/acs.nanolett.4c05796","date_created":"2025-02-16T23:02:34Z","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2407.15314","open_access":"1"}],"acknowledgement":"We thank Carissa Kumar and Vibha Padmanabhan for assistance in comparing performance with devices across the literature. We thank Andrew Cleland for helpful comments on this work. We are grateful for support from the Miba Machine Shop and Nanofabrication facility at IST Austria. This work was supported by the Austrian FWF grant P33692–N and includes a recipient of a DOC Fellowship of the Austrian Academy of Sciences (DOC – No. 26088) at the Institute of Science and Technology, Austria.","citation":{"apa":"Puglia, D., Odessey, R. H., Burns, P., Luhmann, N., Schmid, S., & Higginbotham, A. P. (2025). Room temperature, cavity-free capacitive strong coupling to mechanical motion. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.4c05796","ista":"Puglia D, Odessey RH, Burns P, Luhmann N, Schmid S, Higginbotham AP. 2025. Room temperature, cavity-free capacitive strong coupling to mechanical motion. Nano Letters. 25(7), 2749–2755.","chicago":"Puglia, Denise, Rachel H Odessey, Peter Burns, Niklas Luhmann, Silvan Schmid, and Andrew P Higginbotham. “Room Temperature, Cavity-Free Capacitive Strong Coupling to Mechanical Motion.” Nano Letters. American Chemical Society, 2025. https://doi.org/10.1021/acs.nanolett.4c05796.","ama":"Puglia D, Odessey RH, Burns P, Luhmann N, Schmid S, Higginbotham AP. Room temperature, cavity-free capacitive strong coupling to mechanical motion. Nano Letters. 2025;25(7):2749-2755. doi:10.1021/acs.nanolett.4c05796","mla":"Puglia, Denise, et al. “Room Temperature, Cavity-Free Capacitive Strong Coupling to Mechanical Motion.” Nano Letters, vol. 25, no. 7, American Chemical Society, 2025, pp. 2749–55, doi:10.1021/acs.nanolett.4c05796.","ieee":"D. Puglia, R. H. Odessey, P. Burns, N. Luhmann, S. Schmid, and A. P. Higginbotham, “Room temperature, cavity-free capacitive strong coupling to mechanical motion,” Nano Letters, vol. 25, no. 7. American Chemical Society, pp. 2749–2755, 2025.","short":"D. Puglia, R.H. Odessey, P. Burns, N. Luhmann, S. Schmid, A.P. Higginbotham, Nano Letters 25 (2025) 2749–2755."},"scopus_import":"1","type":"journal_article","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","month":"02","arxiv":1,"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"project":[{"name":"Cavity electromechanics across a quantum phase transition","grant_number":"P33692","_id":"0aa3608a-070f-11eb-9043-e9cd8a2bd931"},{"name":"Surface Charge and Tunneling Multi-Mode Imaging","grant_number":"26088","_id":"62843413-2b32-11ec-9570-c4ec6eabfae7"}],"article_processing_charge":"No","page":"2749-2755","external_id":{"arxiv":["2407.15314"],"isi":["001415246000001"]},"volume":25,"abstract":[{"lang":"eng","text":"The back-action damping of mechanical motion by electromagnetic radiation is typically overwhelmed by internal loss channels unless demanding experimental ingredients such as superconducting resonators, high-quality optical cavities, or large magnetic fields are employed. Here we demonstrate the first room temperature, cavity-free, all-electric device where back-action damping exceeds internal loss, enabled by a mechanically compliant parallel-plate capacitor with a nanoscale plate separation and an aspect ratio exceeding 1,000. The device has 4 orders of magnitude lower insertion loss than a comparable commercial quartz crystal and achieves a position imprecision rivaling optical interferometers. With the help of a back-action isolation scheme, we observe radiative cooling of mechanical motion by a remote cryogenic load. This work provides a technologically accessible route to high-precision sensing, transduction, and signal processing."}],"publication":"Nano Letters","title":"Room temperature, cavity-free capacitive strong coupling to mechanical motion"},{"arxiv":1,"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"project":[{"grant_number":"P33692","_id":"0aa3608a-070f-11eb-9043-e9cd8a2bd931","name":"Cavity electromechanics across a quantum phase transition"},{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships"},{"_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2","name":"Protected states of quantum matter"}],"external_id":{"arxiv":["2408.07829 "],"isi":["001537333100001"]},"article_processing_charge":"Yes (via OA deal)","file_date_updated":"2025-09-10T07:29:06Z","ec_funded":1,"volume":24,"abstract":[{"text":"We report relaxation oscillations in a one-dimensional array of Josephson junctions, wherein the array dynamically switches between low-current and high-current states. The oscillations are current-voltage dual to those ordinarily observed in single junctions. The current-voltage dual circuit quantitatively accounts for temporal dynamics of the array, including the dependence on biasing conditions. Injection locking of the oscillations results in well-developed current plateaux. A thermal model explains the self-consistent reduction of the superconducting gap due to overheating of the array in the high-current state. Our work suggests that overheating determines the switching from the high-current state to the low-current state.","lang":"eng"}],"publication":"Physical Review Applied","title":"Dual relaxation oscillations in a Josephson-junction array","article_number":"014035","quality_controlled":"1","language":[{"iso":"eng"}],"OA_place":"publisher","department":[{"_id":"GradSch"},{"_id":"AnHi"}],"oa":1,"oa_version":"Published Version","_id":"20324","related_material":{"record":[{"id":"18057","relation":"earlier_version","status":"public"}]},"publication_identifier":{"issn":["2331-7019"]},"date_created":"2025-09-10T05:41:30Z","doi":"10.1103/qvls-7s3q","acknowledgement":"We gratefully acknowledge support from the Miba Machine Shop and the Nanofabrictation Facility at IST Austria. This work was supported by the Austrian FWF under Grant No. P33692-N (S.M., J.S., and A.P.H.), the European Union’s Horizon 2020 research and innovation program under Marie Skłodowska-Curie Grant Agreement No. 754411 (J.S.), and a NOMIS Foundation research grant (A.P.H.).","citation":{"ista":"Mukhopadhyay S, Lancheros Naranjo DA, Senior JL, Higginbotham AP. 2025. Dual relaxation oscillations in a Josephson-junction array. Physical Review Applied. 24, 014035.","apa":"Mukhopadhyay, S., Lancheros Naranjo, D. A., Senior, J. L., & Higginbotham, A. P. (2025). Dual relaxation oscillations in a Josephson-junction array. Physical Review Applied. American Physical Society. https://doi.org/10.1103/qvls-7s3q","mla":"Mukhopadhyay, Soham, et al. “Dual Relaxation Oscillations in a Josephson-Junction Array.” Physical Review Applied, vol. 24, 014035, American Physical Society, 2025, doi:10.1103/qvls-7s3q.","ieee":"S. Mukhopadhyay, D. A. Lancheros Naranjo, J. L. Senior, and A. P. Higginbotham, “Dual relaxation oscillations in a Josephson-junction array,” Physical Review Applied, vol. 24. American Physical Society, 2025.","short":"S. Mukhopadhyay, D.A. Lancheros Naranjo, J.L. Senior, A.P. Higginbotham, Physical Review Applied 24 (2025).","chicago":"Mukhopadhyay, Soham, Diego A Lancheros Naranjo, Jorden L Senior, and Andrew P Higginbotham. “Dual Relaxation Oscillations in a Josephson-Junction Array.” Physical Review Applied. American Physical Society, 2025. https://doi.org/10.1103/qvls-7s3q.","ama":"Mukhopadhyay S, Lancheros Naranjo DA, Senior JL, Higginbotham AP. Dual relaxation oscillations in a Josephson-junction array. Physical Review Applied. 2025;24. doi:10.1103/qvls-7s3q"},"scopus_import":"1","type":"journal_article","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"07","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"isi":1,"intvolume":" 24","has_accepted_license":"1","ddc":["530"],"date_published":"2025-07-17T00:00:00Z","OA_type":"hybrid","corr_author":"1","author":[{"id":"FDE60288-A89D-11E9-947F-1AF6E5697425","full_name":"Mukhopadhyay, Soham","orcid":"0000-0001-5263-5559","last_name":"Mukhopadhyay","first_name":"Soham"},{"id":"6c55e976-15b2-11ec-abd3-d790e8937fde","full_name":"Lancheros Naranjo, Diego A","last_name":"Lancheros Naranjo","first_name":"Diego A"},{"last_name":"Senior","first_name":"Jorden L","orcid":"0000-0002-0672-9295","id":"5479D234-2D30-11EA-89CC-40953DDC885E","full_name":"Senior, Jorden L"},{"full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-2607-2363","first_name":"Andrew P","last_name":"Higginbotham"}],"PlanS_conform":"1","day":"17","year":"2025","file":[{"file_id":"20335","file_name":"2025_PhysReviewAppl_Mukhopadhyay.pdf","success":1,"access_level":"open_access","checksum":"6cc3c9beeb7c0a88ee0a072c9a32b78b","relation":"main_file","date_created":"2025-09-10T07:29:06Z","file_size":1370466,"date_updated":"2025-09-10T07:29:06Z","content_type":"application/pdf","creator":"dernst"}],"publication_status":"published","status":"public","article_type":"original","publisher":"American Physical Society","date_updated":"2026-06-03T07:16:04Z"},{"language":[{"iso":"eng"}],"quality_controlled":"1","issue":"5","oa":1,"oa_version":"Published Version","department":[{"_id":"MaSe"},{"_id":"AnHi"}],"acknowledgement":"We acknowledge useful discussions with M. Geier, A. Levchenko, B. Ramshaw, T. Scaffidi, and\r\nJ. Shabani. This research was funded by the Austrian Science Fund (FWF) F 86.\r\nFor the purpose of open access, authors have applied a CC BY public copyright licence to any\r\nAuthor Accepted Manuscript version arising from this submission. MS acknowledges hospitality of KITP supported in part by the National Science Foundation under Grants No. NSF\r\nPHY-1748958 and PHY-2309135. APH acknowledges the support of the NOMIS foundation.","_id":"15367","publication_identifier":{"issn":["2542-4653"]},"date_created":"2024-05-06T09:02:18Z","doi":"10.21468/scipostphys.16.5.115","type":"journal_article","month":"05","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","citation":{"chicago":"Babkin, Serafim, Andrew P Higginbotham, and Maksym Serbyn. “Proximity-Induced Gapless Superconductivity in Two-Dimensional Rashba Semiconductor in Magnetic Field.” SciPost Physics. SciPost Foundation, 2024. https://doi.org/10.21468/scipostphys.16.5.115.","ama":"Babkin S, Higginbotham AP, Serbyn M. Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field. SciPost Physics. 2024;16(5). doi:10.21468/scipostphys.16.5.115","ieee":"S. Babkin, A. P. Higginbotham, and M. Serbyn, “Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field,” SciPost Physics, vol. 16, no. 5. SciPost Foundation, 2024.","mla":"Babkin, Serafim, et al. “Proximity-Induced Gapless Superconductivity in Two-Dimensional Rashba Semiconductor in Magnetic Field.” SciPost Physics, vol. 16, no. 5, 115, SciPost Foundation, 2024, doi:10.21468/scipostphys.16.5.115.","short":"S. Babkin, A.P. Higginbotham, M. Serbyn, SciPost Physics 16 (2024).","apa":"Babkin, S., Higginbotham, A. P., & Serbyn, M. (2024). Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field. SciPost Physics. SciPost Foundation. https://doi.org/10.21468/scipostphys.16.5.115","ista":"Babkin S, Higginbotham AP, Serbyn M. 2024. Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field. SciPost Physics. 16(5), 115."},"scopus_import":"1","arxiv":1,"article_processing_charge":"Yes","external_id":{"isi":["001215855200002"],"arxiv":["2311.09347"]},"project":[{"_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2","name":"Protected states of quantum matter"},{"name":"Center for Correlated Quantum Materials and Solid State Quantum Systems: Probing topology in circuits and quantum materials","_id":"34a7f947-11ca-11ed-8bc3-c5dc2bbaae25","grant_number":"F8609"}],"volume":16,"abstract":[{"lang":"eng","text":"Two-dimensional semiconductor-superconductor heterostructures form the foundation of numerous nanoscale physical systems. However, measuring the properties of such heterostructures, and characterizing the semiconductor in-situ is challenging. A recent experimental study by [Phys. Rev. Lett. 128, 107701 (2022)] was able to probe the semiconductor within the heterostructure using microwave measurements of the superfluid density. This work revealed a rapid depletion of superfluid density in semiconductor, caused by the in-plane magnetic field which in presence of spin-orbit coupling creates so-called Bogoliubov Fermi surfaces. The experimental work used a simplified theoretical model that neglected the presence of non-magnetic disorder in the semiconductor, hence describing the data only qualitatively. Motivated by experiments, we introduce a theoretical model describing a disordered semiconductor with strong spin-orbit coupling that is proximitized by a superconductor. Our model provides specific predictions for the density of states and superfluid density. Presence of disorder leads to the emergence of a gapless superconducting phase, that may be viewed as a manifestation of Bogoliubov Fermi surface. When applied to real experimental data, our model showcases excellent quantitative agreement, enabling the extraction of material parameters such as mean free path and mobility, and estimating g-tensor after taking into account the orbital contribution of magnetic field. Our model can be used to probe in-situ parameters of other superconductor-semiconductor heterostructures and can be further extended to give access to transport properties."}],"publication":"SciPost Physics","file_date_updated":"2024-05-07T12:58:47Z","title":"Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field","article_number":"115","year":"2024","day":"01","file":[{"file_name":"2024_SciPostPhys_Babkin.pdf","file_id":"15369","success":1,"checksum":"f999204856417dcf5a736ac8df432b96","relation":"main_file","date_created":"2024-05-07T12:58:47Z","access_level":"open_access","creator":"dernst","file_size":2733685,"content_type":"application/pdf","date_updated":"2024-05-07T12:58:47Z"}],"publication_status":"published","status":"public","date_updated":"2026-06-03T07:16:00Z","article_type":"original","publisher":"SciPost Foundation","intvolume":" 16","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"isi":1,"has_accepted_license":"1","corr_author":"1","date_published":"2024-05-01T00:00:00Z","ddc":["530"],"author":[{"first_name":"Serafim","last_name":"Babkin","full_name":"Babkin, Serafim","id":"41e64307-6672-11ee-b9ad-cc7a0075a479","orcid":"0009-0003-7382-8036"},{"first_name":"Andrew P","last_name":"Higginbotham","orcid":"0000-0003-2607-2363","full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Maksym","last_name":"Serbyn","orcid":"0000-0002-2399-5827","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87"}]},{"article_type":"original","publisher":"AIP Publishing","date_updated":"2025-09-08T08:10:58Z","status":"public","publication_status":"published","file":[{"checksum":"32a5cdf0ea9c937f806b6039f3219917","date_created":"2024-07-16T06:30:30Z","relation":"main_file","access_level":"open_access","creator":"dernst","file_size":9408198,"content_type":"application/pdf","date_updated":"2024-07-16T06:30:30Z","file_name":"2024_APLMaterial_Kohopaa.pdf","file_id":"17244","success":1}],"day":"01","year":"2024","author":[{"full_name":"Kohopää, Katja","first_name":"Katja","last_name":"Kohopää"},{"full_name":"Ronzani, Alberto","last_name":"Ronzani","first_name":"Alberto"},{"full_name":"Jabdaraghi, Robab Najafi","last_name":"Jabdaraghi","first_name":"Robab Najafi"},{"first_name":"Arijit","last_name":"Bera","full_name":"Bera, Arijit"},{"full_name":"Ribeiro, Mário","last_name":"Ribeiro","first_name":"Mário"},{"last_name":"Hazra","first_name":"Dibyendu","full_name":"Hazra, Dibyendu"},{"full_name":"Senior, Jorden L","id":"5479D234-2D30-11EA-89CC-40953DDC885E","orcid":"0000-0002-0672-9295","first_name":"Jorden L","last_name":"Senior"},{"full_name":"Prunnila, Mika","last_name":"Prunnila","first_name":"Mika"},{"first_name":"Joonas","last_name":"Govenius","full_name":"Govenius, Joonas"},{"last_name":"Lehtinen","first_name":"Janne S.","full_name":"Lehtinen, Janne S."},{"full_name":"Kemppinen, Antti","first_name":"Antti","last_name":"Kemppinen"}],"ddc":["530"],"date_published":"2024-07-01T00:00:00Z","has_accepted_license":"1","isi":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"intvolume":" 12","scopus_import":"1","citation":{"ista":"Kohopää K, Ronzani A, Jabdaraghi RN, Bera A, Ribeiro M, Hazra D, Senior JL, Prunnila M, Govenius J, Lehtinen JS, Kemppinen A. 2024. Effect of ion irradiation on superconducting thin films. APL Materials. 12(7), 071101.","apa":"Kohopää, K., Ronzani, A., Jabdaraghi, R. N., Bera, A., Ribeiro, M., Hazra, D., … Kemppinen, A. (2024). Effect of ion irradiation on superconducting thin films. APL Materials. AIP Publishing. https://doi.org/10.1063/5.0202851","mla":"Kohopää, Katja, et al. “Effect of Ion Irradiation on Superconducting Thin Films.” APL Materials, vol. 12, no. 7, 071101, AIP Publishing, 2024, doi:10.1063/5.0202851.","ieee":"K. Kohopää et al., “Effect of ion irradiation on superconducting thin films,” APL Materials, vol. 12, no. 7. AIP Publishing, 2024.","short":"K. Kohopää, A. Ronzani, R.N. Jabdaraghi, A. Bera, M. Ribeiro, D. Hazra, J.L. Senior, M. Prunnila, J. Govenius, J.S. Lehtinen, A. Kemppinen, APL Materials 12 (2024).","chicago":"Kohopää, Katja, Alberto Ronzani, Robab Najafi Jabdaraghi, Arijit Bera, Mário Ribeiro, Dibyendu Hazra, Jorden L Senior, et al. “Effect of Ion Irradiation on Superconducting Thin Films.” APL Materials. AIP Publishing, 2024. https://doi.org/10.1063/5.0202851.","ama":"Kohopää K, Ronzani A, Jabdaraghi RN, et al. Effect of ion irradiation on superconducting thin films. APL Materials. 2024;12(7). doi:10.1063/5.0202851"},"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","month":"07","type":"journal_article","doi":"10.1063/5.0202851","date_created":"2024-07-14T22:01:11Z","_id":"17235","publication_identifier":{"eissn":["2166-532X"]},"acknowledgement":"We thank J. A. Sauls for useful discussions. For funding of our research project, we acknowledge the European Union’s Horizon 2020 Research and Innovation Program under Grant Agreement Nos. 862660/Quantum e-leaps, 899558/aCryComm, 766853/EFINED, and ECSEL programme 101007322/MatQu. This project has also received funding from Business Finland through Quantum Technologies Industrial (QuTI) Project No. 128291 and from Research Council of Finland through Grant Nos. 310909, 350220 and Finnish Quantum Flagship project 359284. This work was performed as part of the Research Council of Finland Centres of Excellence program (Project Nos. 336817, 336819, 352934, and 352935). We also acknowledge funding from an internal strategic innovation project of VTT related to the development of quantum computing technologies. This research was supported by the Scientific Service Units of IST Austria through resources provided by Electron Microscopy Facility. J. Senior acknowledges funding from the European Union’s Horizon 2020 Research and Innovation Program under the Marie Skłodowska-Curie Grant Agreement No. 754411. A. Ronzani acknowledges funding from Research Council of Finland (Research Fellowship Project No. 356542).","department":[{"_id":"AnHi"}],"oa_version":"Published Version","oa":1,"issue":"7","language":[{"iso":"eng"}],"quality_controlled":"1","article_number":"071101","title":"Effect of ion irradiation on superconducting thin films","file_date_updated":"2024-07-16T06:30:30Z","publication":"APL Materials","abstract":[{"text":"We demonstrate ion irradiation by argon or gallium as a wafer-scale post-processing method to increase disorder in superconducting thin films. We study several widely used superconductors, both single-elements and compounds. We show that ion irradiation increases normal-state resistivity in all our films, which is expected to enable tuning their superconducting properties, for example, toward a higher kinetic inductance. We observe an increase in superconducting transition temperature for Al and MoSi and a decrease for Nb, NbN, and TiN. In MoSi, ion irradiation also improves the mixing of the two materials. We demonstrate the fabrication of an amorphous and homogeneous film of MoSi with uniform thickness, which is promising, for example, for superconducting nanowire single-photon detectors.","lang":"eng"}],"volume":12,"ec_funded":1,"project":[{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"article_processing_charge":"Yes","external_id":{"isi":["001260942200003"]},"acknowledged_ssus":[{"_id":"EM-Fac"}]},{"file":[{"file_name":"2024_NatureNanotechnology_Karimi.pdf","file_id":"18818","success":1,"checksum":"8b067ef217ddef63c539ecdfe705ab95","date_created":"2025-01-09T13:51:12Z","relation":"main_file","access_level":"open_access","creator":"dernst","file_size":3047567,"content_type":"application/pdf","date_updated":"2025-01-09T13:51:12Z"}],"day":"01","year":"2024","article_type":"original","publisher":"Springer Nature","date_updated":"2026-06-03T07:16:01Z","publication_status":"published","status":"public","has_accepted_license":"1","isi":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"intvolume":" 19","author":[{"last_name":"Karimi","first_name":"Bayan","full_name":"Karimi, Bayan"},{"last_name":"Steffensen","first_name":"Gorm Ole","full_name":"Steffensen, Gorm Ole"},{"full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-2607-2363","first_name":"Andrew P","last_name":"Higginbotham"},{"full_name":"Marcus, Charles M.","first_name":"Charles M.","last_name":"Marcus"},{"full_name":"Levy Yeyati, Alfredo","first_name":"Alfredo","last_name":"Levy Yeyati"},{"last_name":"Pekola","first_name":"Jukka P.","full_name":"Pekola, Jukka P."}],"date_published":"2024-11-01T00:00:00Z","ddc":["530"],"OA_type":"hybrid","department":[{"_id":"AnHi"}],"oa":1,"oa_version":"Published Version","quality_controlled":"1","language":[{"iso":"eng"}],"OA_place":"publisher","citation":{"apa":"Karimi, B., Steffensen, G. O., Higginbotham, A. P., Marcus, C. M., Levy Yeyati, A., & Pekola, J. P. (2024). Bolometric detection of Josephson radiation. Nature Nanotechnology. Springer Nature. https://doi.org/10.1038/s41565-024-01770-7","ista":"Karimi B, Steffensen GO, Higginbotham AP, Marcus CM, Levy Yeyati A, Pekola JP. 2024. Bolometric detection of Josephson radiation. Nature Nanotechnology. 19, 1613–1618.","ama":"Karimi B, Steffensen GO, Higginbotham AP, Marcus CM, Levy Yeyati A, Pekola JP. Bolometric detection of Josephson radiation. Nature Nanotechnology. 2024;19:1613-1618. doi:10.1038/s41565-024-01770-7","chicago":"Karimi, Bayan, Gorm Ole Steffensen, Andrew P Higginbotham, Charles M. Marcus, Alfredo Levy Yeyati, and Jukka P. Pekola. “Bolometric Detection of Josephson Radiation.” Nature Nanotechnology. Springer Nature, 2024. https://doi.org/10.1038/s41565-024-01770-7.","short":"B. Karimi, G.O. Steffensen, A.P. Higginbotham, C.M. Marcus, A. Levy Yeyati, J.P. Pekola, Nature Nanotechnology 19 (2024) 1613–1618.","mla":"Karimi, Bayan, et al. “Bolometric Detection of Josephson Radiation.” Nature Nanotechnology, vol. 19, Springer Nature, 2024, pp. 1613–18, doi:10.1038/s41565-024-01770-7.","ieee":"B. Karimi, G. O. Steffensen, A. P. Higginbotham, C. M. Marcus, A. Levy Yeyati, and J. P. Pekola, “Bolometric detection of Josephson radiation,” Nature Nanotechnology, vol. 19. Springer Nature, pp. 1613–1618, 2024."},"scopus_import":"1","type":"journal_article","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","month":"11","publication_identifier":{"issn":["1748-3387"],"eissn":["1748-3395"]},"_id":"17480","date_created":"2024-09-01T22:01:09Z","doi":"10.1038/s41565-024-01770-7","acknowledgement":"We thank M. Möttönen, D. Subero, V. Vadimov, A. Alizadeh, C. Strunk, N. Roch, S. Kafanov, S. Kubatkin, A. Kerman and J. Peltonen for scientific discussions and Z.-Y. Chen for technical assistance. B.K. and J.P.P. acknowledge funding from the Research Council of Finland Centre of Excellence programme grant 336810 and grant 349601 (THEPOW), G.O.S. and A.L.Y. financial support from the Spanish Ministry of Science through grant TED2021-130292B-C43 funded by MCIN/AEI/10.13039/501100011033, ‘ERDF A way of making Europe’ and the EU through FET-Open project AndQC, A.P.H. support from the NOMIS Foundation, and C.M.M. support from the Danish National Research Foundation and a research grant (Project 43951) from VILLUM FONDEN. We thank the facilities and technical support of Otaniemi Research Infrastructure for Micro and Nanotechnologies (OtaNano). The funders had no role in study design, data collection and analysis, decision to publish or preparation of the paper.","project":[{"_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2","name":"Protected states of quantum matter"}],"page":"1613-1618","article_processing_charge":"No","external_id":{"arxiv":["2402.09314"],"isi":["001296522000002"]},"arxiv":1,"title":"Bolometric detection of Josephson radiation","file_date_updated":"2025-01-09T13:51:12Z","volume":19,"abstract":[{"lang":"eng","text":"One of the most promising approaches towards large-scale quantum computation uses devices based on many Josephson junctions. Yet, even today, open questions regarding the single junction remain unsolved, such as the detailed understanding of the quantum phase transitions, the coupling of the Josephson junction to the environment or how to improve the coherence of a superconducting qubit. Here we design and build an engineered on-chip reservoir connected to a Josephson junction that acts as an efficient bolometer for detecting the Josephson radiation under non-equilibrium, that is, biased conditions. The bolometer converts the a.c. Josephson current at microwave frequencies up to about 100 GHz into a temperature rise measured by d.c. thermometry. A circuit model based on realistic parameter values captures both the current–voltage characteristics and the measured power quantitatively. The present experiment demonstrates an efficient, wide-band, thermal detection scheme of microwave photons and provides a sensitive detector of Josephson dynamics beyond the standard conductance measurements."}],"publication":"Nature Nanotechnology"},{"OA_type":"gold","corr_author":"1","APC_amount":"3782,54","date_published":"2024-02-16T00:00:00Z","ddc":["530"],"author":[{"orcid":"0000-0001-7641-8348","id":"2E6D040E-F248-11E8-B48F-1D18A9856A87","full_name":"Sett, Riya","last_name":"Sett","first_name":"Riya"},{"last_name":"Hassani","first_name":"Farid","orcid":"0000-0001-6937-5773","id":"2AED110C-F248-11E8-B48F-1D18A9856A87","full_name":"Hassani, Farid"},{"id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87","full_name":"Phan, Duc T","last_name":"Phan","first_name":"Duc T"},{"last_name":"Barzanjeh","first_name":"Shabir","id":"2D25E1F6-F248-11E8-B48F-1D18A9856A87","full_name":"Barzanjeh, Shabir","orcid":"0000-0003-0415-1423"},{"full_name":"Vukics, Andras","last_name":"Vukics","first_name":"Andras"},{"last_name":"Fink","first_name":"Johannes M","orcid":"0000-0001-8112-028X","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","full_name":"Fink, Johannes M"}],"intvolume":" 5","isi":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"has_accepted_license":"1","status":"public","publication_status":"published","date_updated":"2026-06-27T22:30:29Z","publisher":"American Physical Society","article_type":"original","year":"2024","day":"16","file":[{"checksum":"0833880d47f74ad1deda93a1d8ffa5a7","relation":"main_file","date_created":"2024-06-28T12:04:43Z","access_level":"open_access","creator":"cchlebak","content_type":"application/pdf","date_updated":"2024-06-28T12:04:43Z","file_size":1443351,"file_name":"2024_PRXQuantum_Sett.pdf","file_id":"17185","success":1}],"abstract":[{"lang":"eng","text":"The photon blockade breakdown in a continuously driven cavity QED system has been proposed as a prime example for a first-order driven-dissipative quantum phase transition. However, the predicted scaling from a microscopic behavior—dominated by quantum fluctuations—to a macroscopic one—characterized by stable phases—and the associated exponents and phase diagram have not been observed so far. In this work we couple a single transmon qubit with a fixed coupling strength 𝑔 to a superconducting cavity that is in situ bandwidth 𝜅 tunable to controllably approach this thermodynamic limit. Even though the system remains microscopic, we observe its behavior becoming increasingly macroscopic as a function of 𝑔/𝜅. For the highest realized 𝑔/𝜅 of approximately 287, the system switches with a characteristic timescale as long as 6 s between a bright coherent state with approximately 8×103 intracavity photons and the vacuum state. This exceeds the microscopic timescales by 6 orders of magnitude and approaches the perfect hysteresis expected between two macroscopic attractors in the thermodynamic limit. These findings and interpretation are qualitatively supported by neoclassical theory and large-scale quantum-jump Monte Carlo simulations. Besides shedding more light on driven-dissipative physics in the limit of strong light-matter coupling, this system might also find applications in quantum sensing and metrology."}],"publication":"PRX Quantum","ec_funded":1,"volume":5,"file_date_updated":"2024-06-28T12:04:43Z","article_number":"010327","title":"Emergent macroscopic bistability induced by a single superconducting qubit","arxiv":1,"acknowledged_ssus":[{"_id":"M-Shop"}],"external_id":{"isi":["001171652500001"],"arxiv":["2210.14182"]},"article_processing_charge":"Yes","project":[{"_id":"237CBA6C-32DE-11EA-91FC-C7463DDC885E","grant_number":"862644","name":"Quantum readout techniques and technologies","call_identifier":"H2020"},{"name":"FWF Open Access Fund","call_identifier":"FWF","_id":"3AC91DDA-15DF-11EA-824D-93A3E7B544D1"},{"name":"QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits","_id":"bdb108fd-d553-11ed-ba76-83dc74a9864f","grant_number":"F07105"}],"acknowledgement":"This work has received funding from the Austrian Science Fund (FWF) through BeyondC (F7105) and the European Union’s Horizon 2020 research and innovation program under Grant Agreement No. 862644 (FETopen QUARTET). A.V. acknowledges support from the National Research, Development and Innovation Office of Hungary (NKFIH) within the Quantum Information National Laboratory of Hungary. The authors thank the MIBA workshop and the Institute of Science and Technology Austria nanofabrication facility for technical support. We are grateful to HUN-REN Cloud for providing us with suitable computational infrastructure for the simulations.","doi":"10.1103/prxquantum.5.010327","date_created":"2024-06-27T10:58:06Z","_id":"17183","publication_identifier":{"eissn":["2691-3399"]},"related_material":{"record":[{"status":"public","relation":"research_data","id":"18978"},{"status":"public","relation":"dissertation_contains","id":"19533"}]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"02","type":"journal_article","scopus_import":"1","citation":{"ista":"Sett R, Hassani F, Phan DT, Barzanjeh S, Vukics A, Fink JM. 2024. Emergent macroscopic bistability induced by a single superconducting qubit. PRX Quantum. 5(1), 010327.","apa":"Sett, R., Hassani, F., Phan, D. T., Barzanjeh, S., Vukics, A., & Fink, J. M. (2024). Emergent macroscopic bistability induced by a single superconducting qubit. PRX Quantum. American Physical Society. https://doi.org/10.1103/prxquantum.5.010327","mla":"Sett, Riya, et al. “Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit.” PRX Quantum, vol. 5, no. 1, 010327, American Physical Society, 2024, doi:10.1103/prxquantum.5.010327.","ieee":"R. Sett, F. Hassani, D. T. Phan, S. Barzanjeh, A. Vukics, and J. M. Fink, “Emergent macroscopic bistability induced by a single superconducting qubit,” PRX Quantum, vol. 5, no. 1. American Physical Society, 2024.","short":"R. Sett, F. Hassani, D.T. Phan, S. Barzanjeh, A. Vukics, J.M. Fink, PRX Quantum 5 (2024).","chicago":"Sett, Riya, Farid Hassani, Duc T Phan, Shabir Barzanjeh, Andras Vukics, and Johannes M Fink. “Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit.” PRX Quantum. American Physical Society, 2024. https://doi.org/10.1103/prxquantum.5.010327.","ama":"Sett R, Hassani F, Phan DT, Barzanjeh S, Vukics A, Fink JM. Emergent macroscopic bistability induced by a single superconducting qubit. PRX Quantum. 2024;5(1). doi:10.1103/prxquantum.5.010327"},"OA_place":"publisher","issue":"1","quality_controlled":"1","language":[{"iso":"eng"}],"oa_version":"Published Version","oa":1,"department":[{"_id":"JoFi"},{"_id":"AnHi"}],"DOAJ_listed":"1"},{"article_processing_charge":"No","has_accepted_license":"1","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"title":"Data Analysis files for \"Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit\"","author":[{"first_name":"Riya","last_name":"Sett","full_name":"Sett, Riya","id":"2E6D040E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-7641-8348"},{"last_name":"Hassani","first_name":"Farid","orcid":"0000-0001-6937-5773","id":"2AED110C-F248-11E8-B48F-1D18A9856A87","full_name":"Hassani, Farid"},{"full_name":"Phan, Duc T","id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87","first_name":"Duc T","last_name":"Phan"},{"first_name":"Shabir","last_name":"Barzanjeh","orcid":"0000-0003-0415-1423","full_name":"Barzanjeh, Shabir","id":"2D25E1F6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Vukics, Andras","first_name":"Andras","last_name":"Vukics"},{"last_name":"Fink","first_name":"Johannes M","orcid":"0000-0001-8112-028X","id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","full_name":"Fink, Johannes M"}],"OA_type":"gold","corr_author":"1","abstract":[{"lang":"eng","text":"Data analysis files for the manuscript \"Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit\".\r\n\r\nThis contains the raw data and the data analysis files for generating the figures in the manuscript.\r\n\r\n Figure1 file - The raw data of cavity transmission spectra for 6 different kappas are there. They are fitted with input-output theory in the python file.\r\n Figure2 file - The raw data at 8 MHz kappa are included. all hte figures in figure 2 are generated in the python file\r\n Figure3 file - The raw data of PBB single shot measurements at all kappas are included. The detailed analysis and the Figure3 generated for the paper are all in the python analysis file. Also, thefiles containing the time-evolution of the intensity from Master Equation solution are included.\r\nFigure4 file - The raw data at 2.6 MHz for different drive detunings and the corresponding analyses are included. And the python file includes the analysis of the experimental data as well as approximate neoclassical equations solutions for 2-level and 3-level transmons are included. "}],"date_published":"2024-01-16T00:00:00Z","ddc":["530"],"oa":1,"oa_version":"Published Version","department":[{"_id":"JoFi"},{"_id":"AnHi"}],"OA_place":"repository","year":"2024","day":"16","type":"research_data_reference","date_updated":"2026-06-27T22:30:29Z","month":"01","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"Zenodo","citation":{"ista":"Sett R, Hassani F, Phan DT, Barzanjeh S, Vukics A, Fink JM. 2024. Data Analysis files for ‘Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit’, Zenodo, 10.5281/ZENODO.10518320.","apa":"Sett, R., Hassani, F., Phan, D. T., Barzanjeh, S., Vukics, A., & Fink, J. M. (2024). Data Analysis files for “Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit.” Zenodo. https://doi.org/10.5281/ZENODO.10518320","short":"R. Sett, F. Hassani, D.T. Phan, S. Barzanjeh, A. Vukics, J.M. Fink, (2024).","mla":"Sett, Riya, et al. Data Analysis Files for “Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit.” Zenodo, 2024, doi:10.5281/ZENODO.10518320.","ieee":"R. Sett, F. Hassani, D. T. Phan, S. Barzanjeh, A. Vukics, and J. M. Fink, “Data Analysis files for ‘Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit.’” Zenodo, 2024.","ama":"Sett R, Hassani F, Phan DT, Barzanjeh S, Vukics A, Fink JM. Data Analysis files for “Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit.” 2024. doi:10.5281/ZENODO.10518320","chicago":"Sett, Riya, Farid Hassani, Duc T Phan, Shabir Barzanjeh, Andras Vukics, and Johannes M Fink. “Data Analysis Files for ‘Emergent Macroscopic Bistability Induced by a Single Superconducting Qubit.’” Zenodo, 2024. https://doi.org/10.5281/ZENODO.10518320."},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.5281/zenodo.10518320"}],"related_material":{"record":[{"status":"public","relation":"used_in_publication","id":"17183"},{"id":"19533","status":"public","relation":"used_in_publication"}]},"_id":"18978","doi":"10.5281/ZENODO.10518320","status":"public","date_created":"2025-01-30T08:30:03Z"},{"has_accepted_license":"1","ddc":["539"],"date_published":"2024-09-10T00:00:00Z","corr_author":"1","author":[{"last_name":"Mukhopadhyay","first_name":"Soham","id":"FDE60288-A89D-11E9-947F-1AF6E5697425","full_name":"Mukhopadhyay, Soham","orcid":"0000-0001-5263-5559"}],"day":"10","year":"2024","file":[{"file_id":"18059","file_name":"PhD_Thesis_Soham_Mukhopadhyay.pdf","embargo":"2025-03-13","access_level":"open_access","relation":"main_file","checksum":"ed7763c3bbd59e1d7e1b664de3a26f3c","date_created":"2024-09-12T10:46:04Z","content_type":"application/pdf","date_updated":"2025-03-13T23:30:04Z","file_size":10297052,"creator":"smukhopa"},{"access_level":"closed","relation":"source_file","date_created":"2024-09-12T10:50:58Z","checksum":"e352667482701dd18a9a0e7418aef465","file_size":29178634,"embargo_to":"open_access","content_type":"application/zip","date_updated":"2025-03-13T23:30:04Z","creator":"smukhopa","file_id":"18060","file_name":"PhD_Thesis_Soham_Mukhopadhyay_source.zip"}],"status":"public","publication_status":"published","publisher":"Institute of Science and Technology Austria","date_updated":"2026-06-03T07:16:04Z","acknowledged_ssus":[{"_id":"NanoFab"},{"_id":"M-Shop"}],"project":[{"name":"Cavity electromechanics across a quantum phase transition","_id":"0aa3608a-070f-11eb-9043-e9cd8a2bd931","grant_number":"P33692"}],"article_processing_charge":"No","page":"82","supervisor":[{"full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-2607-2363","first_name":"Andrew P","last_name":"Higginbotham"}],"file_date_updated":"2025-03-13T23:30:04Z","abstract":[{"text":"This work can be broadly classified into the study of critical phenomena in a one dimensional\r\narray of Josephson junctions. While we study quantum criticality when the array is in thermal\r\nequilibrium at zero bias, the non-equilibrium study involves understanding the bistability of the\r\narray at a critical non-zero bias. This work furthers our knowledge in understanding quantum\r\ncritical behaviour at finite temperatures in a one dimensional Josephson array, while also\r\nestablishing relaxation behaviour dual to that observed in a single Josephson junction.\r\nChapter 1 briefly introduces the model to understand superconductor-insulator phase transition\r\nin a one dimensional Josephson array and points out the state of the field from where we\r\nstarted our zero-bias experiments. In this context it discusses the phase-charge duality observed\r\nin a Josephson array and its dual hysteretic behaviour to that of a single junction, setting the\r\nground for our non-equilibrium study of the array.\r\nChapter 2 shows the experimental setup and the chip layout of the device we measured.\r\nIn chapter 3 we show that, unlike the typical quantum-critical broadening scenario, in one dimensional Josephson arrays temperature dramatically shifts the critical region. This shift leads\r\nto a regime of superconductivity at high temperature, arising from the melted zero-temperature\r\ninsulator. Our results quantitatively explain the low-temperature onset of superconductivity in\r\nnominally insulating regimes, and the transition to the strongly insulating phase. We further\r\npresent, to our knowledge, the first understanding of the onset of anomalous-metallic resistance\r\nsaturation [30]. This work demonstrates a non-trivial interplay between thermal effects and\r\nquantum criticality. A practical consequence is that, counterintuitively, the coherence of\r\nhigh-impedance quantum circuits is expected to be stabilized by thermal fluctuations.\r\nIn chapter 4, we show relaxation oscillations in a current-biased one dimensional array of\r\nJosephson junctions. These oscillations are well described by a circuit model, dual to the\r\nordinary Josephson relaxation oscillations [72]. Injection locking these oscillations results in\r\ncurrent plateaux. The relaxation step is found to obey a characteristic self-consistent relation,\r\nsuggesting that it is governed by overheating effects.\r\nChapter 5 describes the various checks and analysis we performed to support our conclusions\r\nmade in chapters 3 and 4.\r\nFinally, chapter 6 describes the nanofabrication steps and the finite element electromagnetic\r\nsimulations we performed to fabricate our devices.","lang":"eng"}],"alternative_title":["ISTA Thesis"],"title":"Thermal effects in one dimensional Josephson chains","language":[{"iso":"eng"}],"OA_place":"publisher","department":[{"_id":"GradSch"},{"_id":"AnHi"}],"oa":1,"oa_version":"Published Version","date_created":"2024-09-08T10:23:25Z","doi":"10.15479/at:ista:17881","_id":"17881","related_material":{"record":[{"relation":"part_of_dissertation","status":"public","id":"14032"},{"id":"18057","status":"public","relation":"part_of_dissertation"}]},"publication_identifier":{"isbn":["978-3-99078-043-5"],"issn":["2663-337X"]},"degree_awarded":"PhD","citation":{"ista":"Mukhopadhyay S. 2024. Thermal effects in one dimensional Josephson chains. Institute of Science and Technology Austria.","apa":"Mukhopadhyay, S. (2024). Thermal effects in one dimensional Josephson chains. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:17881","mla":"Mukhopadhyay, Soham. Thermal Effects in One Dimensional Josephson Chains. Institute of Science and Technology Austria, 2024, doi:10.15479/at:ista:17881.","ieee":"S. Mukhopadhyay, “Thermal effects in one dimensional Josephson chains,” Institute of Science and Technology Austria, 2024.","short":"S. Mukhopadhyay, Thermal Effects in One Dimensional Josephson Chains, Institute of Science and Technology Austria, 2024.","chicago":"Mukhopadhyay, Soham. “Thermal Effects in One Dimensional Josephson Chains.” Institute of Science and Technology Austria, 2024. https://doi.org/10.15479/at:ista:17881.","ama":"Mukhopadhyay S. Thermal effects in one dimensional Josephson chains. 2024. doi:10.15479/at:ista:17881"},"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","month":"09","type":"dissertation"},{"article_number":"2408.07829","title":"Dual relaxation oscillations in a Josephson junction array","publication":"arXiv","abstract":[{"text":"We report relaxation oscillations in a one-dimensional array of Josephson\r\njunctions. The oscillations are circuit-dual to those ordinarily observed in\r\nsingle junctions. The dual circuit quantitatively accounts for temporal\r\ndynamics of the array, including the dependence on biasing conditions.\r\nInjection locking the oscillations results in well-developed current plateaux.\r\nA thermal model explains the relaxation step of the oscillations.","lang":"eng"}],"ec_funded":1,"project":[{"name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425"},{"_id":"0aa3608a-070f-11eb-9043-e9cd8a2bd931","grant_number":"P33692","name":"Cavity electromechanics across a quantum phase transition"},{"_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2","name":"Protected states of quantum matter"}],"external_id":{"arxiv":["2408.07829"]},"article_processing_charge":"No","arxiv":1,"acknowledged_ssus":[{"_id":"NanoFab"},{"_id":"M-Shop"}],"citation":{"short":"S. Mukhopadhyay, D.A. Lancheros Naranjo, J.L. Senior, A.P. Higginbotham, ArXiv (n.d.).","mla":"Mukhopadhyay, Soham, et al. “Dual Relaxation Oscillations in a Josephson Junction Array.” ArXiv, 2408.07829, doi:10.48550/arXiv.2408.07829.","ieee":"S. Mukhopadhyay, D. A. Lancheros Naranjo, J. L. Senior, and A. P. Higginbotham, “Dual relaxation oscillations in a Josephson junction array,” arXiv. .","ama":"Mukhopadhyay S, Lancheros Naranjo DA, Senior JL, Higginbotham AP. Dual relaxation oscillations in a Josephson junction array. arXiv. doi:10.48550/arXiv.2408.07829","chicago":"Mukhopadhyay, Soham, Diego A Lancheros Naranjo, Jorden L Senior, and Andrew P Higginbotham. “Dual Relaxation Oscillations in a Josephson Junction Array.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2408.07829.","ista":"Mukhopadhyay S, Lancheros Naranjo DA, Senior JL, Higginbotham AP. Dual relaxation oscillations in a Josephson junction array. arXiv, 2408.07829.","apa":"Mukhopadhyay, S., Lancheros Naranjo, D. A., Senior, J. L., & Higginbotham, A. P. (n.d.). Dual relaxation oscillations in a Josephson junction array. arXiv. https://doi.org/10.48550/arXiv.2408.07829"},"month":"08","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"preprint","doi":"10.48550/arXiv.2408.07829","date_created":"2024-09-11T09:25:22Z","_id":"18057","related_material":{"record":[{"id":"20324","relation":"later_version","status":"public"},{"id":"17881","relation":"dissertation_contains","status":"public"}]},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2408.07829"}],"acknowledgement":"We gratefully acknowledge support from the MIBA machine shop and Nanofabrication Facility at IST Austria. Work was supported by Austrian FWF grant P33692-N (S.M., J.S. and A.P.H.), the European Union’s Horizon 2020 Research and Innovation program under the Marie Sk lodowska-Curie Grant Agreement No. 754411 (J.S.), and a NOMIS foundation research grant (A.P.H.).\r\n","department":[{"_id":"AnHi"},{"_id":"GradSch"}],"oa":1,"oa_version":"Preprint","language":[{"iso":"eng"}],"OA_place":"repository","author":[{"first_name":"Soham","last_name":"Mukhopadhyay","full_name":"Mukhopadhyay, Soham","id":"FDE60288-A89D-11E9-947F-1AF6E5697425","orcid":"0000-0001-5263-5559"},{"id":"6c55e976-15b2-11ec-abd3-d790e8937fde","full_name":"Lancheros Naranjo, Diego A","last_name":"Lancheros Naranjo","first_name":"Diego A"},{"first_name":"Jorden L","last_name":"Senior","orcid":"0000-0002-0672-9295","full_name":"Senior, Jorden L","id":"5479D234-2D30-11EA-89CC-40953DDC885E"},{"first_name":"Andrew P","last_name":"Higginbotham","orcid":"0000-0003-2607-2363","full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87"}],"date_published":"2024-08-14T00:00:00Z","corr_author":"1","date_updated":"2026-06-27T22:30:53Z","status":"public","publication_status":"draft","day":"14","year":"2024"},{"date_created":"2024-09-20T12:13:30Z","doi":"10.15479/at:ista:18104","_id":"18104","related_material":{"record":[{"id":"18143","status":"public","relation":"part_of_dissertation"}]},"publication_identifier":{"issn":["2663-337X"]},"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","month":"09","type":"dissertation","degree_awarded":"PhD","citation":{"ista":"Puglia D. 2024. Everyday electromechanics: Capacitive strong coupling to mechanical motion. Institute of Science and Technology Austria.","apa":"Puglia, D. (2024). Everyday electromechanics: Capacitive strong coupling to mechanical motion. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:18104","short":"D. Puglia, Everyday Electromechanics: Capacitive Strong Coupling to Mechanical Motion, Institute of Science and Technology Austria, 2024.","mla":"Puglia, Denise. Everyday Electromechanics: Capacitive Strong Coupling to Mechanical Motion. Institute of Science and Technology Austria, 2024, doi:10.15479/at:ista:18104.","ieee":"D. Puglia, “Everyday electromechanics: Capacitive strong coupling to mechanical motion,” Institute of Science and Technology Austria, 2024.","ama":"Puglia D. Everyday electromechanics: Capacitive strong coupling to mechanical motion. 2024. doi:10.15479/at:ista:18104","chicago":"Puglia, Denise. “Everyday Electromechanics: Capacitive Strong Coupling to Mechanical Motion.” Institute of Science and Technology Austria, 2024. https://doi.org/10.15479/at:ista:18104."},"OA_place":"publisher","language":[{"iso":"eng"}],"oa_version":"Published Version","oa":1,"department":[{"_id":"GradSch"},{"_id":"AnHi"}],"abstract":[{"lang":"eng","text":"We introduce a new all-electric platform, that strong couples light to mechanical motion\r\nby ensuring that the external environmental coupling dominates over internal mechanical\r\ndissipation. The system only has three everyday components: AC, DC, and a fip-chip, in which\r\na metallized silicon nitride membrane is fipped on top of the device under test. This everyday\r\nelectromechanical device can be operated at low or room temperature and has 10000× lower\r\ninsertion loss than a comparable commercial quartz crystal, achieves a position imprecision\r\nmatching state-of-the-art optical interferometer, and enables remote cooling of mechanical\r\nmotion. The spatial properties of higher order mechanical modes are a promising feature for\r\nreconstructing unknown charge distributions.\r\n"}],"alternative_title":["ISTA Thesis"],"file_date_updated":"2025-05-20T22:30:05Z","title":"Everyday electromechanics: Capacitive strong coupling to mechanical motion","acknowledged_ssus":[{"_id":"NanoFab"},{"_id":"M-Shop"}],"article_processing_charge":"No","page":"63","supervisor":[{"last_name":"Higginbotham","first_name":"Andrew P","orcid":"0000-0003-2607-2363","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","full_name":"Higginbotham, Andrew P"}],"project":[{"name":"Cavity electromechanics across a quantum phase transition","grant_number":"P33692","_id":"0aa3608a-070f-11eb-9043-e9cd8a2bd931"},{"_id":"62843413-2b32-11ec-9570-c4ec6eabfae7","grant_number":"26088","name":"Surface Charge and Tunneling Multi-Mode Imaging"}],"status":"public","publication_status":"published","date_updated":"2026-04-07T13:22:10Z","publisher":"Institute of Science and Technology Austria","year":"2024","day":"20","file":[{"file_size":10778238,"date_updated":"2025-05-20T22:30:05Z","content_type":"application/pdf","creator":"cchlebak","access_level":"open_access","relation":"main_file","checksum":"7969263451b2356bfa0924725aa9de10","date_created":"2024-09-20T12:07:48Z","embargo":"2025-05-20","file_id":"18105","file_name":"PhD_DPuglia_Final.pdf"},{"date_created":"2024-09-20T12:13:09Z","checksum":"98dfe7675775e30efffa03f7ff7c091b","relation":"source_file","access_level":"closed","creator":"cchlebak","content_type":"application/x-zip-compressed","date_updated":"2025-05-20T22:30:05Z","file_size":385419748,"embargo_to":"open_access","file_name":"PhD_DPuglia_Thesis.zip","file_id":"18106"}],"license":"https://creativecommons.org/licenses/by-nc/4.0/","corr_author":"1","ddc":["530"],"date_published":"2024-09-20T00:00:00Z","author":[{"last_name":"Puglia","first_name":"Denise","orcid":"0000-0003-1144-2763","id":"4D495994-AE37-11E9-AC72-31CAE5697425","full_name":"Puglia, Denise"}],"tmp":{"name":"Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)","short":"CC BY-NC (4.0)","image":"/images/cc_by_nc.png","legal_code_url":"https://creativecommons.org/licenses/by-nc/4.0/legalcode"},"has_accepted_license":"1"},{"article_number":"2407.15314","title":"Room temperature, cavity-free capacitive strong coupling to mechanical motion","author":[{"orcid":"0000-0003-1144-2763","full_name":"Puglia, Denise","id":"4D495994-AE37-11E9-AC72-31CAE5697425","first_name":"Denise","last_name":"Puglia"},{"id":"9a7a5123-8972-11ed-ae7b-dd1f2af457bd","full_name":"Odessey, Rachel H","last_name":"Odessey","first_name":"Rachel H"},{"last_name":"Burns","first_name":"Peter S.","full_name":"Burns, Peter S."},{"first_name":"Niklas","last_name":"Luhmann","full_name":"Luhmann, Niklas"},{"first_name":"Silvan","last_name":"Schmid","full_name":"Schmid, Silvan"},{"first_name":"Andrew P","last_name":"Higginbotham","full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-2607-2363"}],"abstract":[{"text":"Strong optomechanical coupling -- a regime where mechanical motion is damped\r\nby environmental radiation -- has traditionally required demanding experimental\r\ningredients such as superconducting resonators, high-quality optical cavities,\r\nor large magnetic fields. Here we demonstrate a room temperature, cavity-free,\r\nall-electric device reaching this regime at radio frequencies, enabled by a\r\nmechanically compliant parallel-plate capacitor with a nanoscale plate\r\nseparation and an aspect ratio exceeding 1,000. The device has four orders of\r\nmagnitude lower insertion loss than a comparable commercial quartz crystal, and\r\nachieves a position imprecision rivaling an optical interferometer. With the\r\nhelp of a back-action isolation scheme, we observe radiative cooling of\r\nmechanical motion by a remote cryogenic load. This work provides a\r\ntechnologically accessible route to high-precision sensing, transduction, and\r\nsignal processing.","lang":"eng"}],"publication":"arXiv","corr_author":"1","date_published":"2024-08-24T00:00:00Z","article_processing_charge":"No","external_id":{"arxiv":["2407.15314"]},"project":[{"_id":"62843413-2b32-11ec-9570-c4ec6eabfae7","grant_number":"26088","name":"Surface Charge and Tunneling Multi-Mode Imaging"},{"_id":"0aa3608a-070f-11eb-9043-e9cd8a2bd931","grant_number":"P33692","name":"Cavity electromechanics across a quantum phase transition"}],"arxiv":1,"month":"08","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2026-06-27T22:30:55Z","type":"preprint","citation":{"apa":"Puglia, D., Odessey, R. H., Burns, P. S., Luhmann, N., Schmid, S., & Higginbotham, A. P. (n.d.). Room temperature, cavity-free capacitive strong coupling to mechanical motion. arXiv. https://doi.org/10.48550/arXiv.2407.15314","ista":"Puglia D, Odessey RH, Burns PS, Luhmann N, Schmid S, Higginbotham AP. Room temperature, cavity-free capacitive strong coupling to mechanical motion. arXiv, 2407.15314.","ama":"Puglia D, Odessey RH, Burns PS, Luhmann N, Schmid S, Higginbotham AP. Room temperature, cavity-free capacitive strong coupling to mechanical motion. arXiv. doi:10.48550/arXiv.2407.15314","chicago":"Puglia, Denise, Rachel H Odessey, Peter S. Burns, Niklas Luhmann, Silvan Schmid, and Andrew P Higginbotham. “Room Temperature, Cavity-Free Capacitive Strong Coupling to Mechanical Motion.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2407.15314.","short":"D. Puglia, R.H. Odessey, P.S. Burns, N. Luhmann, S. Schmid, A.P. Higginbotham, ArXiv (n.d.).","ieee":"D. Puglia, R. H. Odessey, P. S. Burns, N. Luhmann, S. Schmid, and A. P. Higginbotham, “Room temperature, cavity-free capacitive strong coupling to mechanical motion,” arXiv. .","mla":"Puglia, Denise, et al. “Room Temperature, Cavity-Free Capacitive Strong Coupling to Mechanical Motion.” ArXiv, 2407.15314, doi:10.48550/arXiv.2407.15314."},"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2407.15314","open_access":"1"}],"status":"public","doi":"10.48550/arXiv.2407.15314","date_created":"2024-09-26T06:58:27Z","_id":"18143","publication_status":"draft","related_material":{"record":[{"relation":"later_version","status":"public","id":"19026"},{"relation":"dissertation_contains","status":"public","id":"18104"}]},"oa_version":"Preprint","oa":1,"department":[{"_id":"AnHi"}],"year":"2024","OA_place":"repository","day":"24","language":[{"iso":"eng"}]},{"file":[{"file_id":"12917","file_name":"2023_NatureComm_DiezMerida.pdf","success":1,"access_level":"open_access","date_created":"2023-05-08T07:26:40Z","checksum":"a778105665c10beb2354c92d2b295115","relation":"main_file","content_type":"application/pdf","date_updated":"2023-05-08T07:26:40Z","file_size":1405588,"creator":"dernst"}],"day":"26","year":"2023","publisher":"Springer Nature","article_type":"original","date_updated":"2023-08-01T14:34:00Z","status":"public","pmid":1,"publication_status":"published","has_accepted_license":"1","isi":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"intvolume":" 14","author":[{"last_name":"Díez-Mérida","first_name":"J.","full_name":"Díez-Mérida, J."},{"full_name":"Díez-Carlón, A.","first_name":"A.","last_name":"Díez-Carlón"},{"full_name":"Yang, S. Y.","last_name":"Yang","first_name":"S. Y."},{"full_name":"Xie, Y. M.","last_name":"Xie","first_name":"Y. M."},{"full_name":"Gao, X. J.","last_name":"Gao","first_name":"X. J."},{"last_name":"Senior","first_name":"Jorden L","id":"5479D234-2D30-11EA-89CC-40953DDC885E","full_name":"Senior, Jorden L"},{"first_name":"K.","last_name":"Watanabe","full_name":"Watanabe, K."},{"full_name":"Taniguchi, T.","last_name":"Taniguchi","first_name":"T."},{"first_name":"X.","last_name":"Lu","full_name":"Lu, X."},{"first_name":"Andrew P","last_name":"Higginbotham","full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-2607-2363"},{"first_name":"K. T.","last_name":"Law","full_name":"Law, K. T."},{"last_name":"Efetov","first_name":"Dmitri K.","full_name":"Efetov, Dmitri K."}],"ddc":["530"],"date_published":"2023-04-26T00:00:00Z","department":[{"_id":"AnHi"}],"oa_version":"Published Version","oa":1,"quality_controlled":"1","language":[{"iso":"eng"}],"scopus_import":"1","citation":{"apa":"Díez-Mérida, J., Díez-Carlón, A., Yang, S. Y., Xie, Y. M., Gao, X. J., Senior, J. L., … Efetov, D. K. (2023). Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-023-38005-7","ista":"Díez-Mérida J, Díez-Carlón A, Yang SY, Xie YM, Gao XJ, Senior JL, Watanabe K, Taniguchi T, Lu X, Higginbotham AP, Law KT, Efetov DK. 2023. Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene. Nature Communications. 14, 2396.","ama":"Díez-Mérida J, Díez-Carlón A, Yang SY, et al. Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene. Nature Communications. 2023;14. doi:10.1038/s41467-023-38005-7","chicago":"Díez-Mérida, J., A. Díez-Carlón, S. Y. Yang, Y. M. Xie, X. J. Gao, Jorden L Senior, K. Watanabe, et al. “Symmetry-Broken Josephson Junctions and Superconducting Diodes in Magic-Angle Twisted Bilayer Graphene.” Nature Communications. Springer Nature, 2023. https://doi.org/10.1038/s41467-023-38005-7.","short":"J. Díez-Mérida, A. Díez-Carlón, S.Y. Yang, Y.M. Xie, X.J. Gao, J.L. Senior, K. Watanabe, T. Taniguchi, X. Lu, A.P. Higginbotham, K.T. Law, D.K. Efetov, Nature Communications 14 (2023).","ieee":"J. Díez-Mérida et al., “Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene,” Nature Communications, vol. 14. Springer Nature, 2023.","mla":"Díez-Mérida, J., et al. “Symmetry-Broken Josephson Junctions and Superconducting Diodes in Magic-Angle Twisted Bilayer Graphene.” Nature Communications, vol. 14, 2396, Springer Nature, 2023, doi:10.1038/s41467-023-38005-7."},"month":"04","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","type":"journal_article","doi":"10.1038/s41467-023-38005-7","date_created":"2023-05-07T22:01:03Z","publication_identifier":{"eissn":["2041-1723"]},"_id":"12913","acknowledgement":"We are grateful for the fruitful discussions with Allan MacDonald and Andrei Bernevig. D.K.E. acknowledges support from the Ministry of Economy and Competitiveness of Spain through the “Severo Ochoa” program for Centers of Excellence in R&D (SE5-0522), Fundació Privada Cellex, Fundació Privada Mir-Puig, the Generalitat de Catalunya through the CERCA program, funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement no. 852927)” and the La Caixa Foundation. K.T.L. acknowledges the support of the Ministry of Science and Technology of China and the HKRGC through grants MOST20SC04, C6025-19G, 16310219, 16309718, and 16310520. J.D.M. acknowledges support from the INPhINIT ‘la Caixa’ Foundation (ID 100010434) fellowship program (LCF/BQ/DI19/11730021). Y.M.X. acknowledges the support of HKRGC through Grant No. PDFS2223-6S01.","external_id":{"isi":["000979744000004"],"pmid":["37100775"]},"article_processing_charge":"No","title":"Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene","article_number":"2396","file_date_updated":"2023-05-08T07:26:40Z","publication":"Nature Communications","abstract":[{"lang":"eng","text":"The coexistence of gate-tunable superconducting, magnetic and topological orders in magic-angle twisted bilayer graphene provides opportunities for the creation of hybrid Josephson junctions. Here we report the fabrication of gate-defined symmetry-broken Josephson junctions in magic-angle twisted bilayer graphene, where the weak link is gate-tuned close to the correlated insulator state with a moiré filling factor of υ = −2. We observe a phase-shifted and asymmetric Fraunhofer pattern with a pronounced magnetic hysteresis. Our theoretical calculations of the junction weak link—with valley polarization and orbital magnetization—explain most of these unconventional features. The effects persist up to the critical temperature of 3.5 K, with magnetic hysteresis observed below 800 mK. We show how the combination of magnetization and its current-induced magnetization switching allows us to realise a programmable zero-field superconducting diode. Our results represent a major advance towards the creation of future superconducting quantum electronic devices."}],"volume":14},{"external_id":{"isi":["001012022600004"],"arxiv":["2206.05746"]},"article_processing_charge":"No","acknowledged_ssus":[{"_id":"NanoFab"},{"_id":"M-Shop"}],"arxiv":1,"title":"Gate-tunable superconductor-semiconductor parametric amplifier","article_number":"064032","publication":"Physical Review Applied","abstract":[{"text":"We build a parametric amplifier with a Josephson field-effect transistor (JoFET) as the active element. The resonant frequency of the device is field-effect tunable over a range of 2 GHz. The JoFET amplifier has 20 dB of gain, 4 MHz of instantaneous bandwidth, and a 1-dB compression point of -125.5 dBm when operated at a fixed resonance frequency.\r\n\r\n","lang":"eng"}],"volume":19,"department":[{"_id":"AnHi"},{"_id":"OnHo"}],"oa_version":"Preprint","oa":1,"issue":"6","quality_controlled":"1","language":[{"iso":"eng"}],"scopus_import":"1","citation":{"short":"D.T. Phan, P. Falthansl-Scheinecker, U. Mishra, W.M. Strickland, D. Langone, J. Shabani, A.P. Higginbotham, Physical Review Applied 19 (2023).","mla":"Phan, Duc T., et al. “Gate-Tunable Superconductor-Semiconductor Parametric Amplifier.” Physical Review Applied, vol. 19, no. 6, 064032, American Physical Society, 2023, doi:10.1103/PhysRevApplied.19.064032.","ieee":"D. T. Phan et al., “Gate-tunable superconductor-semiconductor parametric amplifier,” Physical Review Applied, vol. 19, no. 6. American Physical Society, 2023.","ama":"Phan DT, Falthansl-Scheinecker P, Mishra U, et al. Gate-tunable superconductor-semiconductor parametric amplifier. Physical Review Applied. 2023;19(6). doi:10.1103/PhysRevApplied.19.064032","chicago":"Phan, Duc T, Paul Falthansl-Scheinecker, Umang Mishra, W. M. Strickland, D. Langone, J. Shabani, and Andrew P Higginbotham. “Gate-Tunable Superconductor-Semiconductor Parametric Amplifier.” Physical Review Applied. American Physical Society, 2023. https://doi.org/10.1103/PhysRevApplied.19.064032.","ista":"Phan DT, Falthansl-Scheinecker P, Mishra U, Strickland WM, Langone D, Shabani J, Higginbotham AP. 2023. Gate-tunable superconductor-semiconductor parametric amplifier. Physical Review Applied. 19(6), 064032.","apa":"Phan, D. T., Falthansl-Scheinecker, P., Mishra, U., Strickland, W. M., Langone, D., Shabani, J., & Higginbotham, A. P. (2023). Gate-tunable superconductor-semiconductor parametric amplifier. Physical Review Applied. American Physical Society. https://doi.org/10.1103/PhysRevApplied.19.064032"},"month":"06","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","type":"journal_article","date_created":"2023-07-23T22:01:12Z","doi":"10.1103/PhysRevApplied.19.064032","publication_identifier":{"eissn":["2331-7019"]},"_id":"13264","related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"14547"}]},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2206.05746"}],"acknowledgement":"We thank Shyam Shankar for helpful feedback on the manuscript. We gratefully acknowledge the support of the ISTA nanofabrication facility, the Miba Machine Shop, and the eMachine Shop. The NYU team acknowledges support from Army Research Office Grant No. W911NF2110303.","isi":1,"intvolume":" 19","author":[{"full_name":"Phan, Duc T","id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87","first_name":"Duc T","last_name":"Phan"},{"id":"85b43b21-15b2-11ec-abd3-e2c252cc2285","full_name":"Falthansl-Scheinecker, Paul","last_name":"Falthansl-Scheinecker","first_name":"Paul"},{"last_name":"Mishra","first_name":"Umang","id":"4328fa4c-f128-11eb-9611-c107b0fe4d51","full_name":"Mishra, Umang"},{"full_name":"Strickland, W. M.","last_name":"Strickland","first_name":"W. M."},{"last_name":"Langone","first_name":"D.","full_name":"Langone, D."},{"last_name":"Shabani","first_name":"J.","full_name":"Shabani, J."},{"orcid":"0000-0003-2607-2363","full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","first_name":"Andrew P","last_name":"Higginbotham"}],"date_published":"2023-06-09T00:00:00Z","corr_author":"1","day":"09","year":"2023","publisher":"American Physical Society","article_type":"original","date_updated":"2026-04-07T13:25:51Z","status":"public","publication_status":"published"},{"keyword":["superconductor-semiconductor","superconductivity","Al","InAs","p-wave","superconductivity","JPA","microwave"],"has_accepted_license":"1","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","short":"CC BY-NC-SA (4.0)","image":"/images/cc_by_nc_sa.png","name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)"},"author":[{"first_name":"Duc T","last_name":"Phan","full_name":"Phan, Duc T","id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87"}],"corr_author":"1","date_published":"2023-11-16T00:00:00Z","ddc":["530"],"file":[{"file_name":"Phan_Thesis_pdfa.pdf","file_id":"14548","checksum":"db0c37d213bc002125bd59690e9db246","relation":"main_file","date_created":"2023-11-17T13:36:44Z","access_level":"open_access","creator":"pduc","date_updated":"2023-11-22T09:46:06Z","content_type":"application/pdf","file_size":34828019},{"creator":"pduc","content_type":"application/zip","date_updated":"2023-11-17T13:47:54Z","file_size":279319709,"checksum":"8d3bd6afa279a0078ffd13e06bb6d56d","date_created":"2023-11-17T13:44:53Z","relation":"source_file","access_level":"closed","file_name":"dissertation_src.zip","file_id":"14549"}],"license":"https://creativecommons.org/licenses/by-nc-sa/4.0/","year":"2023","day":"16","date_updated":"2026-04-07T13:25:52Z","publisher":"Institute of Science and Technology Austria","status":"public","publication_status":"published","page":"80","article_processing_charge":"No","supervisor":[{"full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-2607-2363","first_name":"Andrew P","last_name":"Higginbotham"}],"acknowledged_ssus":[{"_id":"NanoFab"},{"_id":"Bio"}],"title":"Resonant microwave spectroscopy of Al-InAs","abstract":[{"text":"Superconductor-semiconductor heterostructures currently capture a significant amount of research interest and they serve as the physical platform in many proposals towards topological quantum computation.\r\nDespite being under extensive investigations, historically using transport techniques, the basic properties of the interface between the superconductor and the semiconductor remain to be understood.\r\n\r\nIn this thesis, two separate studies on the Al-InAs heterostructures are reported with the first focusing on the physics of the material motivated by the emergence of a new phase, the Bogoliubov-Fermi surface. \r\nThe second focuses on a technological application, a gate-tunable Josephson parametric amplifier.\r\n\r\nIn the first study, we investigate the hypothesized unconventional nature of the induced superconductivity at the interface between the Al thin film and the InAs quantum well.\r\nWe embed a two-dimensional Al-InAs hybrid system in a resonant microwave circuit allowing measurements of change in inductance.\r\nThe behaviour of the resonance in a range of temperature and in-plane magnetic field has been studied and compared with the theory of conventional s-wave superconductor and a two-component theory that includes both contribution of the $s$-wave pairing in Al and the intraband $p \\pm ip$ pairing in InAs.\r\nMeasuring the temperature dependence of resonant frequency, no discrepancy is found between data and the conventional theory.\r\nWe observe the breakdown of superconductivity due to an applied magnetic field which contradicts the conventional theory.\r\nIn contrast, the data can be captured quantitatively by fitting to a two-component model.\r\nWe find the evidence of the intraband $p \\pm ip$ pairing in the InAs and the emergence of the Bogoliubov-Fermi surfaces due to magnetic field with the characteristic value $B^* = 0.33~\\mathrm{T}$.\r\nFrom the fits, the sheet resistance of Al, the carrier density and mobility in InAs are determined.\r\nBy systematically studying the anisotropy of the circuit response, we find weak anisotropy for $B < B^*$ and increasingly strong anisotropy for $B > B^*$ resulting in a pronounced two-lobe structure in polar plot of frequency versus field angle.\r\nStrong resemblance between the field dependence of dissipation and superfluid density hints at a hidden signature of the Bogoliubov-Fermi surface that is burried in the dissipation data.\r\n\r\nIn the second study, we realize a parametric amplifier with a Josephson field effect transistor as the active element.\r\nThe device's modest construction consists of a gated SNS weak link embedded at the center of a coplanar waveguide resonator.\r\nBy applying a gate voltage, the resonant frequency is field-effect tunable over a range of 2 GHz.\r\nModelling the JoFET minimally as a parallel RL circuit, the dissipation introduced by the JoFET can be quantitatively related to the gate voltage.\r\nWe observed gate-tunable Kerr nonlinearity qualitatively in line with expectation.\r\nThe JoFET amplifier has 20 dB of gain, 4 MHz of instantaneous bandwidth, and a 1dB compression point of -125.5 dBm when operated at a fixed resonant frequency.\r\nIn general, the signal-to-noise ratio is improved by 5-7 dB when the JoFET amplifier is activated compared.\r\nThe noise of the measurement chain and insertion loss of relevant circuit elements are calibrated to determine the expected and the real noise performance of the JoFET amplifier.\r\nAs a quantification of the noise performance, the measured total input-referred noise of the JoFET amplifier is in good agreement with the estimated expectation which takes device loss into account.\r\nWe found that the noise performance of the device reported in this document approaches one photon of total input-referred added noise which is the quantum limit imposed in nondegenerate parametric amplifier.","lang":"eng"}],"alternative_title":["ISTA Thesis"],"file_date_updated":"2023-11-22T09:46:06Z","oa_version":"Published Version","oa":1,"department":[{"_id":"GradSch"},{"_id":"AnHi"}],"OA_place":"publisher","language":[{"iso":"eng"}],"user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","month":"11","type":"dissertation","degree_awarded":"PhD","citation":{"chicago":"Phan, Duc T. “Resonant Microwave Spectroscopy of Al-InAs.” Institute of Science and Technology Austria, 2023. https://doi.org/10.15479/14547.","ama":"Phan DT. Resonant microwave spectroscopy of Al-InAs. 2023. doi:10.15479/14547","mla":"Phan, Duc T. Resonant Microwave Spectroscopy of Al-InAs. Institute of Science and Technology Austria, 2023, doi:10.15479/14547.","ieee":"D. T. Phan, “Resonant microwave spectroscopy of Al-InAs,” Institute of Science and Technology Austria, 2023.","short":"D.T. Phan, Resonant Microwave Spectroscopy of Al-InAs, Institute of Science and Technology Austria, 2023.","apa":"Phan, D. T. (2023). Resonant microwave spectroscopy of Al-InAs. Institute of Science and Technology Austria. https://doi.org/10.15479/14547","ista":"Phan DT. 2023. Resonant microwave spectroscopy of Al-InAs. Institute of Science and Technology Austria."},"date_created":"2023-11-17T13:45:26Z","doi":"10.15479/14547","_id":"14547","publication_identifier":{"issn":["2663-337X"]},"related_material":{"record":[{"id":"13264","relation":"part_of_dissertation","status":"public"},{"status":"public","relation":"part_of_dissertation","id":"10851"}]}},{"abstract":[{"lang":"eng","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."}],"publication":"Nature Physics","ec_funded":1,"volume":19,"file_date_updated":"2024-01-29T11:25:38Z","title":"Superconductivity from a melted insulator in Josephson junction arrays","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"external_id":{"isi":["001054563800006"]},"article_processing_charge":"Yes (in subscription journal)","page":"1630-1635","project":[{"name":"Cavity electromechanics across a quantum phase transition","_id":"0aa3608a-070f-11eb-9043-e9cd8a2bd931","grant_number":"P33692"},{"name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411"},{"name":"Protected states of quantum matter","_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2"}],"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.).","doi":"10.1038/s41567-023-02161-w","date_created":"2023-08-11T07:41:17Z","_id":"14032","publication_identifier":{"issn":["1745-2473"],"eissn":["1745-2481"]},"related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"17881"}]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"11","type":"journal_article","scopus_import":"1","citation":{"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.” Nature Physics. Springer Nature, 2023. https://doi.org/10.1038/s41567-023-02161-w.","ama":"Mukhopadhyay S, Senior JL, Saez Mollejo J, et al. Superconductivity from a melted insulator in Josephson junction arrays. Nature Physics. 2023;19:1630-1635. doi:10.1038/s41567-023-02161-w","mla":"Mukhopadhyay, Soham, et al. “Superconductivity from a Melted Insulator in Josephson Junction Arrays.” Nature Physics, vol. 19, Springer Nature, 2023, pp. 1630–35, doi:10.1038/s41567-023-02161-w.","ieee":"S. Mukhopadhyay et al., “Superconductivity from a melted insulator in Josephson junction arrays,” Nature Physics, vol. 19. Springer Nature, pp. 1630–1635, 2023.","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.","apa":"Mukhopadhyay, S., Senior, J. L., Saez Mollejo, J., Puglia, D., Zemlicka, M., Fink, J. M., & Higginbotham, A. P. (2023). Superconductivity from a melted insulator in Josephson junction arrays. Nature Physics. Springer Nature. https://doi.org/10.1038/s41567-023-02161-w","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."},"language":[{"iso":"eng"}],"quality_controlled":"1","oa_version":"Published Version","oa":1,"department":[{"_id":"GradSch"},{"_id":"AnHi"},{"_id":"JoFi"}],"corr_author":"1","ddc":["530"],"date_published":"2023-11-01T00:00:00Z","author":[{"first_name":"Soham","last_name":"Mukhopadhyay","orcid":"0000-0001-5263-5559","full_name":"Mukhopadhyay, Soham","id":"FDE60288-A89D-11E9-947F-1AF6E5697425"},{"first_name":"Jorden L","last_name":"Senior","orcid":"0000-0002-0672-9295","full_name":"Senior, Jorden L","id":"5479D234-2D30-11EA-89CC-40953DDC885E"},{"last_name":"Saez Mollejo","first_name":"Jaime","id":"e0390f72-f6e0-11ea-865d-862393336714","full_name":"Saez Mollejo, Jaime"},{"first_name":"Denise","last_name":"Puglia","orcid":"0000-0003-1144-2763","full_name":"Puglia, Denise","id":"4D495994-AE37-11E9-AC72-31CAE5697425"},{"first_name":"Martin","last_name":"Zemlicka","full_name":"Zemlicka, Martin","id":"2DCF8DE6-F248-11E8-B48F-1D18A9856A87","orcid":"0009-0005-0878-3032"},{"id":"4B591CBA-F248-11E8-B48F-1D18A9856A87","full_name":"Fink, Johannes M","orcid":"0000-0001-8112-028X","last_name":"Fink","first_name":"Johannes M"},{"last_name":"Higginbotham","first_name":"Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","full_name":"Higginbotham, Andrew P","orcid":"0000-0003-2607-2363"}],"intvolume":" 19","isi":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"keyword":["General Physics and Astronomy"],"has_accepted_license":"1","status":"public","publication_status":"published","date_updated":"2026-06-27T22:30:53Z","article_type":"original","publisher":"Springer Nature","year":"2023","day":"01","file":[{"success":1,"file_id":"14899","file_name":"2023_NaturePhysics_Mukhopadhyay.pdf","file_size":1977706,"date_updated":"2024-01-29T11:25:38Z","content_type":"application/pdf","creator":"dernst","access_level":"open_access","date_created":"2024-01-29T11:25:38Z","checksum":"1fc86d71bfbf836e221c1e925343adc5","relation":"main_file"}]},{"status":"public","pmid":1,"publication_status":"published","publisher":"American Physical Society","article_type":"original","date_updated":"2026-04-07T13:25:51Z","day":"11","year":"2022","date_published":"2022-03-11T00:00:00Z","corr_author":"1","author":[{"full_name":"Phan, Duc T","id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87","first_name":"Duc T","last_name":"Phan"},{"last_name":"Senior","first_name":"Jorden L","id":"5479D234-2D30-11EA-89CC-40953DDC885E","full_name":"Senior, Jorden L","orcid":"0000-0002-0672-9295"},{"last_name":"Ghazaryan","first_name":"Areg","orcid":"0000-0001-9666-3543","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","full_name":"Ghazaryan, Areg"},{"first_name":"M.","last_name":"Hatefipour","full_name":"Hatefipour, M."},{"last_name":"Strickland","first_name":"W. M.","full_name":"Strickland, W. M."},{"first_name":"J.","last_name":"Shabani","full_name":"Shabani, J."},{"orcid":"0000-0002-2399-5827","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","first_name":"Maksym","last_name":"Serbyn"},{"first_name":"Andrew P","last_name":"Higginbotham","orcid":"0000-0003-2607-2363","full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87"}],"isi":1,"intvolume":" 128","keyword":["General Physics and Astronomy"],"doi":"10.1103/physrevlett.128.107701","date_created":"2022-03-17T11:37:47Z","publication_identifier":{"issn":["0031-9007"],"eissn":["1079-7114"]},"_id":"10851","related_material":{"record":[{"relation":"earlier_version","status":"public","id":"10029"},{"id":"14547","status":"public","relation":"dissertation_contains"}],"link":[{"description":"News on ISTA Website","relation":"press_release","url":"https://ista.ac.at/en/news/characterizing-super-semi-sandwiches-for-quantum-computing/"}]},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2107.03695"}],"acknowledgement":"M. S. acknowledges useful discussions with A. Levchenko and P. A. Lee, and E. Berg. This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication facility. J. S. and A. G. acknowledge funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 754411.W. M. Hatefipour, W. M. Strickland and J. Shabani acknowledge funding from Office of Naval Research Award No. N00014-21-1-2450.","scopus_import":"1","citation":{"ista":"Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn M, Higginbotham AP. 2022. Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. Physical Review Letters. 128(10), 107701.","apa":"Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M., Shabani, J., … Higginbotham, A. P. (2022). Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.128.107701","short":"D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J. Shabani, M. Serbyn, A.P. Higginbotham, Physical Review Letters 128 (2022).","mla":"Phan, Duc T., et al. “Detecting Induced P±ip Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.” Physical Review Letters, vol. 128, no. 10, 107701, American Physical Society, 2022, doi:10.1103/physrevlett.128.107701.","ieee":"D. T. Phan et al., “Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit,” Physical Review Letters, vol. 128, no. 10. American Physical Society, 2022.","ama":"Phan DT, Senior JL, Ghazaryan A, et al. Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. Physical Review Letters. 2022;128(10). doi:10.1103/physrevlett.128.107701","chicago":"Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland, J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Detecting Induced P±ip Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.” Physical Review Letters. American Physical Society, 2022. https://doi.org/10.1103/physrevlett.128.107701."},"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","month":"03","type":"journal_article","issue":"10","quality_controlled":"1","language":[{"iso":"eng"}],"department":[{"_id":"MaSe"},{"_id":"AnHi"}],"oa_version":"Preprint","oa":1,"publication":"Physical Review Letters","abstract":[{"text":"Superconductor-semiconductor hybrid devices are at the heart of several proposed approaches to quantum information processing, but their basic properties remain to be understood. We embed a twodimensional Al-InAs hybrid system in a resonant microwave circuit, probing the breakdown of superconductivity due to an applied magnetic field. We find a fingerprint from the two-component nature of the hybrid system, and quantitatively compare with a theory that includes the contribution of intraband p±ip pairing in the InAs, as well as the emergence of Bogoliubov-Fermi surfaces due to magnetic field. Separately resolving the Al and InAs contributions allows us to determine the carrier density and mobility in the InAs.","lang":"eng"}],"volume":128,"ec_funded":1,"title":"Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit","article_number":"107701","arxiv":1,"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships"}],"article_processing_charge":"No","external_id":{"pmid":[" 35333085"],"isi":["000771391100002"],"arxiv":["2107.03695"]}},{"type":"journal_article","month":"02","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"short":"A.P. Higginbotham, Nature Physics 18 (2022) 126.","ieee":"A. P. Higginbotham, “A secret source,” Nature Physics, vol. 18. Springer Nature, p. 126, 2022.","mla":"Higginbotham, Andrew P. “A Secret Source.” Nature Physics, vol. 18, Springer Nature, 2022, p. 126, doi:10.1038/s41567-021-01459-x.","ama":"Higginbotham AP. A secret source. Nature Physics. 2022;18:126. doi:10.1038/s41567-021-01459-x","chicago":"Higginbotham, Andrew P. “A Secret Source.” Nature Physics. Springer Nature, 2022. https://doi.org/10.1038/s41567-021-01459-x.","ista":"Higginbotham AP. 2022. A secret source. Nature Physics. 18, 126.","apa":"Higginbotham, A. P. (2022). A secret source. Nature Physics. Springer Nature. https://doi.org/10.1038/s41567-021-01459-x"},"scopus_import":"1","_id":"10589","publication_identifier":{"eissn":["1745-2481"],"issn":["1745-2473"]},"doi":"10.1038/s41567-021-01459-x","date_created":"2022-01-02T23:01:35Z","oa_version":"None","department":[{"_id":"AnHi"}],"language":[{"iso":"eng"}],"quality_controlled":"1","title":"A secret source","volume":18,"abstract":[{"lang":"eng","text":"Superconducting devices ubiquitously have an excess of broken Cooper pairs, which can hamper their performance. It is widely believed that external radiation is responsible but a study now suggests there must be an additional, unknown source."}],"publication":"Nature Physics","page":"126","external_id":{"isi":["000733431000007"]},"article_processing_charge":"No","date_updated":"2024-10-09T21:01:21Z","article_type":"letter_note","publisher":"Springer Nature","publication_status":"published","status":"public","year":"2022","day":"01","author":[{"last_name":"Higginbotham","first_name":"Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","full_name":"Higginbotham, Andrew P","orcid":"0000-0003-2607-2363"}],"corr_author":"1","date_published":"2022-02-01T00:00:00Z","keyword":["superconducting devices","superconducting properties and materials"],"intvolume":" 18","isi":1},{"article_processing_charge":"No","abstract":[{"text":"Data for the manuscript 'Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire' ([2006.01275] Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire (arxiv.org))\r\n\r\nWe upload a pdf with extended data sets, and the raw data for these extended datasets as well.","lang":"eng"}],"corr_author":"1","date_published":"2021-03-09T00:00:00Z","ddc":["530"],"title":"Data for 'Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire","author":[{"orcid":"0000-0003-1144-2763","id":"4D495994-AE37-11E9-AC72-31CAE5697425","full_name":"Puglia, Denise","last_name":"Puglia","first_name":"Denise"},{"first_name":"Esteban","last_name":"Martinez","full_name":"Martinez, Esteban"},{"full_name":"Menard, Gerbold","last_name":"Menard","first_name":"Gerbold"},{"first_name":"Andreas","last_name":"Pöschl","full_name":"Pöschl, Andreas"},{"last_name":"Gronin","first_name":"Sergei","full_name":"Gronin, Sergei"},{"last_name":"Gardner","first_name":"Geoffrey","full_name":"Gardner, Geoffrey"},{"full_name":"Kallaher, Ray","last_name":"Kallaher","first_name":"Ray"},{"first_name":"Michael","last_name":"Manfra","full_name":"Manfra, Michael"},{"full_name":"Marcus, Charles","first_name":"Charles","last_name":"Marcus"},{"id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","full_name":"Higginbotham, Andrew P","orcid":"0000-0003-2607-2363","last_name":"Higginbotham","first_name":"Andrew P"},{"first_name":"Lucas","last_name":"Casparis","full_name":"Casparis, Lucas"}],"year":"2021","day":"09","oa_version":"Published Version","oa":1,"department":[{"_id":"AnHi"}],"main_file_link":[{"url":"https://doi.org/10.5281/zenodo.4592460","open_access":"1"}],"doi":"10.5281/ZENODO.4592435","date_created":"2023-05-23T17:11:28Z","status":"public","_id":"13080","related_material":{"link":[{"url":"https://github.com/caslu85/Induced-Gap-Closing-Shared/tree/1.1.3","relation":"software"}],"record":[{"relation":"used_in_publication","status":"public","id":"9570"}]},"date_updated":"2025-07-10T12:01:53Z","month":"03","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"research_data_reference","publisher":"Zenodo","citation":{"ieee":"D. Puglia et al., “Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire.” Zenodo, 2021.","mla":"Puglia, Denise, et al. Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire. Zenodo, 2021, doi:10.5281/ZENODO.4592435.","short":"D. Puglia, E. Martinez, G. Menard, A. Pöschl, S. Gronin, G. Gardner, R. Kallaher, M. Manfra, C. Marcus, A.P. Higginbotham, L. Casparis, (2021).","chicago":"Puglia, Denise, Esteban Martinez, Gerbold Menard, Andreas Pöschl, Sergei Gronin, Geoffrey Gardner, Ray Kallaher, et al. “Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire.” Zenodo, 2021. https://doi.org/10.5281/ZENODO.4592435.","ama":"Puglia D, Martinez E, Menard G, et al. Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire. 2021. doi:10.5281/ZENODO.4592435","ista":"Puglia D, Martinez E, Menard G, Pöschl A, Gronin S, Gardner G, Kallaher R, Manfra M, Marcus C, Higginbotham AP, Casparis L. 2021. Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire, Zenodo, 10.5281/ZENODO.4592435.","apa":"Puglia, D., Martinez, E., Menard, G., Pöschl, A., Gronin, S., Gardner, G., … Casparis, L. (2021). Data for ’Closing of the Induced Gap in a Hybrid Superconductor-Semiconductor Nanowire. Zenodo. https://doi.org/10.5281/ZENODO.4592435"}},{"year":"2021","day":"08","date_updated":"2025-04-15T06:54:43Z","publication_status":"draft","status":"public","author":[{"first_name":"Duc T","last_name":"Phan","full_name":"Phan, Duc T","id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Jorden L","last_name":"Senior","orcid":"0000-0002-0672-9295","full_name":"Senior, Jorden L","id":"5479D234-2D30-11EA-89CC-40953DDC885E"},{"id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","full_name":"Ghazaryan, Areg","orcid":"0000-0001-9666-3543","last_name":"Ghazaryan","first_name":"Areg"},{"full_name":"Hatefipour, M.","last_name":"Hatefipour","first_name":"M."},{"last_name":"Strickland","first_name":"W. M.","full_name":"Strickland, W. M."},{"last_name":"Shabani","first_name":"J.","full_name":"Shabani, J."},{"last_name":"Serbyn","first_name":"Maksym","orcid":"0000-0002-2399-5827","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym"},{"orcid":"0000-0003-2607-2363","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","full_name":"Higginbotham, Andrew P","last_name":"Higginbotham","first_name":"Andrew P"}],"date_published":"2021-07-08T00:00:00Z","oa":1,"oa_version":"Preprint","department":[{"_id":"MaSe"},{"_id":"AnHi"},{"_id":"MiLe"}],"language":[{"iso":"eng"}],"type":"preprint","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"07","citation":{"apa":"Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M., Shabani, J., … Higginbotham, A. P. (n.d.). Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid. arXiv. https://doi.org/10.48550/arXiv.2107.03695","ista":"Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn M, Higginbotham AP. Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid. arXiv, 2107.03695.","chicago":"Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland, J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Breakdown of Induced P±ip Pairing in a Superconductor-Semiconductor Hybrid.” ArXiv, n.d. https://doi.org/10.48550/arXiv.2107.03695.","ama":"Phan DT, Senior JL, Ghazaryan A, et al. Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid. arXiv. doi:10.48550/arXiv.2107.03695","ieee":"D. T. Phan et al., “Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid,” arXiv. .","mla":"Phan, Duc T., et al. “Breakdown of Induced P±ip Pairing in a Superconductor-Semiconductor Hybrid.” ArXiv, 2107.03695, doi:10.48550/arXiv.2107.03695.","short":"D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J. Shabani, M. Serbyn, A.P. Higginbotham, ArXiv (n.d.)."},"acknowledgement":"This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication facility. JS and AG were supported by funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Grant Agreement No.754411.","main_file_link":[{"url":"https://arxiv.org/abs/2107.03695","open_access":"1"}],"_id":"10029","related_material":{"record":[{"id":"9636","status":"public","relation":"research_data"},{"id":"10851","status":"public","relation":"later_version"}]},"date_created":"2021-09-21T08:41:02Z","doi":"10.48550/arXiv.2107.03695","external_id":{"arxiv":["2107.03695"]},"article_processing_charge":"No","project":[{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411"}],"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"arxiv":1,"title":"Breakdown of induced p±ip pairing in a superconductor-semiconductor hybrid","article_number":"2107.03695","ec_funded":1,"abstract":[{"lang":"eng","text":"Superconductor-semiconductor hybrids are platforms for realizing effective p-wave superconductivity. Spin-orbit coupling, combined with the proximity effect, causes the two-dimensional semiconductor to inherit p±ip intraband pairing, and application of magnetic field can then result in transitions to the normal state, partial Bogoliubov Fermi surfaces, or topological phases with Majorana modes. Experimentally probing the hybrid superconductor-semiconductor interface is challenging due to the shunting effect of the conventional superconductor. Consequently, the nature of induced pairing remains an open question. Here, we use the circuit quantum electrodynamics architecture to probe induced superconductivity in a two dimensional Al-InAs hybrid system. We observe a strong suppression of superfluid density and enhanced dissipation driven by magnetic field, which cannot be accounted for by the depairing theory of an s-wave superconductor. These observations are explained by a picture of independent intraband p±ip superconductors giving way to partial Bogoliubov Fermi surfaces, and allow for the first characterization of key properties of the hybrid superconducting system."}],"publication":"arXiv"}]