Extracting quantum work statistics and fluctuation theorems by single-qubit interferometry

dc.contributor.authorDorner, Ross
dc.contributor.authorClark, Stephen R.
dc.contributor.authorHeaney, Libby
dc.contributor.authorFazio, Rosario
dc.contributor.authorGoold, John
dc.contributor.authorVedral, Vlatko
dc.contributor.funderLeverhulme Trust
dc.contributor.funderJohn Templeton Foundation
dc.contributor.funderWolfson College, University of Oxford
dc.contributor.funderMinistry of Education - Singapore
dc.contributor.funderNational Research Foundation
dc.contributor.funderIrish Research Council for Science, Engineering and Technology
dc.contributor.funderEngineering and Physical Sciences Research Council
dc.date.accessioned2017-09-04T09:02:30Z
dc.date.available2017-09-04T09:02:30Z
dc.date.issued2013
dc.description.abstractWe propose an experimental scheme to verify the quantum nonequilibrium fluctuation relations using current technology. Specifically, we show that the characteristic function of the work distribution for a nonequilibrium quench of a general quantum system can be extracted by Ramsey interferometry of a single probe qubit. Our scheme paves the way for the full characterization of nonequilibrium processes in a variety of quantum systems, ranging from single particles to many-body atomic systems and spin chains. We demonstrate our idea using a time-dependent quench of the motional state of a trapped ion, where the internal pseudospin provides a convenient probe qubit.en
dc.description.sponsorshipIrish Research Council for Science, Engineering and Technology (Marie Curie International Mobility fellowship)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid230601
dc.identifier.citationDorner, R., Clark, S. R., Heaney, L., Fazio, R., Goold, J. and Vedral, V. (2013) 'Extracting quantum work statistics and fluctuation theorems by single-qubit interferometry', Physical Review Letters, 110(23), 230601 (5pp). doi: 10.1103/PhysRevLett.110.230601en
dc.identifier.doi10.1103/PhysRevLett.110.230601
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issued23
dc.identifier.journaltitlePhysical Review Lettersen
dc.identifier.urihttps://hdl.handle.net/10468/4617
dc.identifier.volume110
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttps://journals.aps.org/prl/abstract/10.1103/PhysRevLett.110.230601
dc.rights© 2013, American Physical Societyen
dc.subjectFree energy differencesen
dc.titleExtracting quantum work statistics and fluctuation theorems by single-qubit interferometryen
dc.typeArticle (peer-reviewed)en
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