Heat, work, and energy currents in the boundary-driven XXZ spin chain

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dc.creatorEmmanuel Araújo Pereira
dc.date.accessioned2021-07-27T19:06:06Z
dc.date.accessioned2025-09-08T23:17:37Z
dc.date.available2021-07-27T19:06:06Z
dc.date.issued2018
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.identifier.doihttps://doi.org/10.1103/PhysRevE.97.022115
dc.identifier.issn2470-0053
dc.identifier.urihttps://hdl.handle.net/1843/37028
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofPhysical review E
dc.rightsAcesso Restrito
dc.subjectCalor
dc.subjectCadeia de spins
dc.subject.otherHeat
dc.subject.otherEnergy currents
dc.titleHeat, work, and energy currents in the boundary-driven XXZ spin chain
dc.typeArtigo de periódico
local.citation.epage022115-6
local.citation.issue2
local.citation.spage022115-1
local.citation.volume97
local.description.resumoWe address the detailed study of the energy current and its components, heat and work, in the boundary-driven one-dimensional XXZ quantum model. We carry out the investigation by considering two different approaches present in the literature. First, we take the repeated interaction scheme and derive the expressions for the currents of heat and work, exchanged between system and baths. Then we perform the derivation of the energy current by means of a Lindblad master equation together with a continuity equation, another approach which is recurrently used. A comparison between the obtained expressions allows us to show the consistency of both approaches, and, in the latter expression derived from the Lindblad equation, it allows us to split the energy, which comes from the baths to the system, into heat and work. The recognition of work in the process, which is recurrently ignored in studies of transport, enables us to understand thermodynamical aspects and to solve some imbroglios in the physics behind the energy current in the XXZ spin chain.
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://journals.aps.org/pre/abstract/10.1103/PhysRevE.97.022115

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