Large deviations and fluctuation theorem for the quantum heat current in the spin-boson model

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dc.contributor University of Helsinki, Department of Mathematics and Statistics en
dc.contributor.author Aurell, Erik
dc.contributor.author Donvil, Brecht
dc.contributor.author Mallick, Kirone
dc.date.accessioned 2020-09-28T14:43:01Z
dc.date.available 2020-09-28T14:43:01Z
dc.date.issued 2020-05-15
dc.identifier.citation Aurell , E , Donvil , B & Mallick , K 2020 , ' Large deviations and fluctuation theorem for the quantum heat current in the spin-boson model ' , Physical Review E , vol. 101 , no. 5 , 052116 . https://doi.org/10.1103/PhysRevE.101.052116 en
dc.identifier.issn 2470-0045
dc.identifier.other PURE: 138117272
dc.identifier.other PURE UUID: edfbdb8f-66ca-4db5-a9f9-ee0aeb4c6f95
dc.identifier.other WOS: 000533160700002
dc.identifier.other ORCID: /0000-0002-3952-6283/work/75565114
dc.identifier.uri http://hdl.handle.net/10138/319671
dc.description.abstract We study the heat current flowing between two baths consisting of harmonic oscillators interacting with a qubit through a spin-boson coupling. An explicit expression for the generating function of the total heat flowing between the right and left baths is derived by evaluating the corresponding Feynman-Vernon path integral by performing the noninteracting blip approximation (NIBA). We recover the known expression, obtained by using the polaron transform. This generating function satisfies the Gallavotti-Cohen fluctuation theorem, both before and after performing the NIBA. We also verify that the heat conductance is proportional to the variance of the heat current, retrieving the well-known fluctuation dissipation relation. Finally, we present numerical results for the heat current. en
dc.format.extent 15
dc.language.iso eng
dc.relation.ispartof Physical Review E
dc.rights en
dc.subject DISSIPATIVE DYNAMICS en
dc.subject COUNTING STATISTICS en
dc.subject 2-LEVEL SYSTEM en
dc.subject RECIPROCITY en
dc.subject 111 Mathematics en
dc.title Large deviations and fluctuation theorem for the quantum heat current in the spin-boson model en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1103/PhysRevE.101.052116
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
dc.contributor.pbl

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