{"language":[{"iso":"eng"}],"day":"10","corr_author":"1","researchdata_availability":"yes","publication":"Physical Review Applied","article_processing_charge":"Yes (via OA deal)","_id":"22323","publisher":"American Physical Society","oa_version":"Published Version","has_accepted_license":"1","oa":1,"quality_controlled":"1","article_number":"014031","date_created":"2026-07-14T05:35:24Z","PlanS_conform":"1","file":[{"relation":"main_file","file_name":"2026_PhysicalReviewApplied_Leonard.pdf","date_created":"2026-07-16T09:39:37Z","file_id":"22350","date_updated":"2026-07-16T09:39:37Z","content_type":"application/pdf","success":1,"file_size":2750867,"access_level":"open_access","checksum":"d872ca35d9d2c7821642fda520be2c15","creator":"dernst"}],"article_type":"original","OA_place":"publisher","ddc":["530"],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"id":"41737c86-5355-11ee-ae5a-d2146bfd0877","last_name":"Galvin","first_name":"Kristen W","full_name":"Galvin, Kristen W"},{"first_name":"Anton","full_name":"Bubis, Anton","id":"1f6212b5-f795-11ec-9c0c-de4780302890","last_name":"Bubis"},{"last_name":"Mikalsen","full_name":"Mikalsen, Melissa","first_name":"Melissa"},{"full_name":"Schiela, William F.","first_name":"William F.","last_name":"Schiela"},{"full_name":"Elfeky, Bassel H.","first_name":"Bassel H.","last_name":"Elfeky"},{"last_name":"Strickland","full_name":"Strickland, William M.","first_name":"William M."},{"id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87","last_name":"Phan","first_name":"Duc T","full_name":"Phan, Duc T"},{"last_name":"Shabani","first_name":"Javad","full_name":"Shabani, Javad"},{"id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","last_name":"Higginbotham","first_name":"Andrew P","orcid":"0000-0003-2607-2363","full_name":"Higginbotham, Andrew P"}],"file_date_updated":"2026-07-16T09:39:37Z","acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"date_updated":"2026-07-21T12:01:49Z","volume":26,"supplementarymaterial":"no","publication_identifier":{"issn":["2331-7019"]},"year":"2026","license":"https://creativecommons.org/licenses/by/4.0/","OA_type":"hybrid","status":"public","type":"journal_article","month":"07","arxiv":1,"dataavailabilitystatement":"The data that support the findings of this article are openly available under 10.5281/zenodo\r\n.19615009. ","title":"Microwave radiometry of a quantum-critical hybrid Josephson array","date_published":"2026-07-10T00:00:00Z","citation":{"ieee":"K. W. Léonard <i>et al.</i>, “Microwave radiometry of a quantum-critical hybrid Josephson array,” <i>Physical Review Applied</i>, vol. 26. American Physical Society, 2026.","chicago":"Léonard, Kristen Williams, Anton Bubis, Melissa Mikalsen, William F. Schiela, Bassel H. Elfeky, William M. Strickland, Duc T Phan, Javad Shabani, and Andrew P Higginbotham. “Microwave Radiometry of a Quantum-Critical Hybrid Josephson Array.” <i>Physical Review Applied</i>. American Physical Society, 2026. <a href=\"https://doi.org/10.1103/75bl-mm3b\">https://doi.org/10.1103/75bl-mm3b</a>.","ama":"Léonard KW, Bubis A, Mikalsen M, et al. Microwave radiometry of a quantum-critical hybrid Josephson array. <i>Physical Review Applied</i>. 2026;26. doi:<a href=\"https://doi.org/10.1103/75bl-mm3b\">10.1103/75bl-mm3b</a>","ista":"Léonard KW, Bubis A, Mikalsen M, Schiela WF, Elfeky BH, Strickland WM, Phan DT, Shabani J, Higginbotham AP. 2026. Microwave radiometry of a quantum-critical hybrid Josephson array. Physical Review Applied. 26, 014031.","apa":"Léonard, K. W., Bubis, A., Mikalsen, M., Schiela, W. F., Elfeky, B. H., Strickland, W. M., … Higginbotham, A. P. (2026). Microwave radiometry of a quantum-critical hybrid Josephson array. <i>Physical Review Applied</i>. American Physical Society. <a href=\"https://doi.org/10.1103/75bl-mm3b\">https://doi.org/10.1103/75bl-mm3b</a>","mla":"Léonard, Kristen Williams, et al. “Microwave Radiometry of a Quantum-Critical Hybrid Josephson Array.” <i>Physical Review Applied</i>, vol. 26, 014031, American Physical Society, 2026, doi:<a href=\"https://doi.org/10.1103/75bl-mm3b\">10.1103/75bl-mm3b</a>.","short":"K.W. Léonard, A. Bubis, M. Mikalsen, W.F. Schiela, B.H. Elfeky, W.M. Strickland, D.T. Phan, J. Shabani, A.P. Higginbotham, Physical Review Applied 26 (2026)."},"intvolume":"        26","external_id":{"arxiv":["2409.09835"]},"publication_status":"published","scopus_import":"1","fulldoi":"https://doi.org/10.1103/75bl-mm3b","tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"abstract":[{"text":"Arrays of Josephson junctions can be tuned through anomalous metallic, quantum-critical, and insulating regimes. We introduce an alternative experimental probe, capturing microwave radiation across all three regimes, using a two-dimensional array of superconductor-semiconductor hybrid Josephson junctions as a model system. Our approach allows  calibration of the sample’s circuit parameters and provides isolation from measurement back-action effects. We measure the radiation temperature of the anomalous metal and find that it is hotter than both the quantum-critical and insulating regimes. We further show that the anomalous metallic regime is more susceptible to additional heating than other regimes, explaining its emergence in otherwise thermalized systems. Turning to the quantum-critical regime, we discover nonlinear scaling of radiative noise with applied bias, consistent with theoretical predictions of universal nonequilibrium behavior at quantum-critical points.","lang":"eng"}],"doi":"10.1103/75bl-mm3b","department":[{"_id":"GradSch"},{"_id":"AnHi"},{"_id":"GeKa"}],"project":[{"_id":"34a66131-11ca-11ed-8bc3-a31681c6b03e","grant_number":"F8606","name":"Center for Correlated Quantum Materials and Solid State Quantum Systems: Conventional  and unconventional topological superconductors"}],"acknowledgement":"We gratefully acknowledge feedback on the preprint\r\nfrom Charles Marcus, Vadim Khrapai, Joel Moore,\r\nAndrew Green, Shivaji Sondhi, Rufus Boyack, and\r\nLuca Delacr´etaz. This work was primarily supported by\r\nthe NOMIS foundation. This work was partially supported\r\nby the University of Chicago Materials Research Science\r\nand Engineering Center, which is funded by the National\r\nScience Foundation under Award No. DMR-2011854, and\r\nby the SFB Q-M&S funded by the Austrian Science Fund\r\n(FWF). We acknowledge technical support from the\r\nNanofabrication Facility and the MIBA machine shop at\r\nIST Austria."}