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Fisher zeros and persistent temporal oscillations in nonunitary quantum circuits

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dc.contributor.authorBasu, Sankhya
dc.contributor.authorArovas, Daniel P.
dc.contributor.authorGopalakrishnan, Sarang
dc.contributor.authorHooley, Chris
dc.contributor.authorOganesyan, Vadim
dc.date.accessioned2022-03-07T12:30:15Z
dc.date.available2022-03-07T12:30:15Z
dc.date.issued2022-01-07
dc.identifier.citationBasu , S , Arovas , D P , Gopalakrishnan , S , Hooley , C & Oganesyan , V 2022 , ' Fisher zeros and persistent temporal oscillations in nonunitary quantum circuits ' , Physical Review Research , vol. 4 , no. 1 , 013018 . https://doi.org/10.1103/PhysRevResearch.4.013018en
dc.identifier.issn2643-1564
dc.identifier.otherPURE: 277099722
dc.identifier.otherPURE UUID: 946922e8-6ba0-4933-8086-4657128eb478
dc.identifier.otherORCID: /0000-0002-9976-2405/work/109766296
dc.identifier.otherWOS: 000743867900002
dc.identifier.otherScopus: 85122861345
dc.identifier.urihttp://hdl.handle.net/10023/25001
dc.descriptionFunding: UK Engineering and Physical Sciences Research Council (EPSRC) grant EP/R031924/1.en
dc.description.abstractWe present a quantum circuit with measurements and postselection that exhibits a panoply of space- and/or time-ordered phases from ferromagnetic order to spin-density waves to time crystals. Unlike the time crystals that have been found in unitary models, those that occur here are incommensurate with the drive frequency. The period of the incommensurate time-crystal phase may be tuned by adjusting the circuit parameters. We demonstrate that the phases of our quantum circuit, including the inherently nonequilibrium dynamical ones, correspond to complex-temperature equilibrium phases of the exactly solvable square-lattice anisotropic Ising model.
dc.format.extent13
dc.language.isoeng
dc.relation.ispartofPhysical Review Researchen
dc.rightsCopyright © 2021 by the authors. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.en
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.subjectT-NDASen
dc.subjectNCADen
dc.subject.lccQCen
dc.subject.lccTKen
dc.titleFisher zeros and persistent temporal oscillations in nonunitary quantum circuitsen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Centre for Designer Quantum Materialsen
dc.contributor.institutionUniversity of St Andrews. Centre for Higher Education Researchen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doihttps://doi.org/10.1103/PhysRevResearch.4.013018
dc.description.statusPeer revieweden
dc.identifier.urlhttps://arxiv.org/abs/2103.10628en
dc.identifier.grantnumberEP/R031924/1en


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