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Experimental Determination of Dynamical Lee-Yang Zeros

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Brandner, Kay
dc.contributor.author Maisi, Ville
dc.contributor.author Pekola, Jukka P.
dc.contributor.author Garrahan, Juan P.
dc.contributor.author Flindt, Christian
dc.date.accessioned 2017-05-31T06:04:29Z
dc.date.available 2017-05-31T06:04:29Z
dc.date.issued 2017-05-04
dc.identifier.citation Brandner , K , Maisi , V , Pekola , J P , Garrahan , J P & Flindt , C 2017 , ' Experimental Determination of Dynamical Lee-Yang Zeros ' , Physical Review Letters , vol. 118 , no. 18 , 180601 , pp. 1-6 . https://doi.org/10.1103/PhysRevLett.118.180601 en
dc.identifier.issn 0031-9007
dc.identifier.issn 1079-7114
dc.identifier.other PURE UUID: d98daeeb-6622-4a5b-a8fe-85f54a544ed3
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/d98daeeb-6622-4a5b-a8fe-85f54a544ed3
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85019017155&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/13313237/PhysRevLett.118.180601.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/26543
dc.description.abstract Statistical physics provides the concepts and methods to explain the phase behavior of interacting many-body systems. Investigations of Lee-Yang zeros - complex singularities of the free energy in systems of finite size - have led to a unified understanding of equilibrium phase transitions. The ideas of Lee and Yang, however, are not restricted to equilibrium phenomena. Recently, Lee-Yang zeros have been used to characterize nonequilibrium processes such as dynamical phase transitions in quantum systems after a quench or dynamic order-disorder transitions in glasses. Here, we experimentally realize a scheme for determining Lee-Yang zeros in such nonequilibrium settings. We extract the dynamical Lee-Yang zeros of a stochastic process involving Andreev tunneling between a normal-state island and two superconducting leads from measurements of the dynamical activity along a trajectory. From the short-time behavior of the Lee-Yang zeros, we predict the large-deviation statistics of the activity which is typically difficult to measure. Our method paves the way for further experiments on the statistical mechanics of many-body systems out of equilibrium. en
dc.format.extent 1-6
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Physical Review Letters en
dc.relation.ispartofseries Volume 118, issue 18 en
dc.rights openAccess en
dc.title Experimental Determination of Dynamical Lee-Yang Zeros en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department University of Nottingham
dc.identifier.urn URN:NBN:fi:aalto-201705315158
dc.identifier.doi 10.1103/PhysRevLett.118.180601
dc.type.version publishedVersion

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