Model for calorimetric measurements in an open quantum system

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Donvil, Brecht Muratore-Ginanneschi, Paolo Pekola, Jukka P. Schwieger, Kay 2018-06-18T09:21:02Z 2018-06-18T09:21:02Z 2018-05-08
dc.identifier.citation Donvil , B , Muratore-Ginanneschi , P , Pekola , J P & Schwieger , K 2018 , ' Model for calorimetric measurements in an open quantum system ' Physical Review A , vol 97 , no. 5 , 052107 , pp. 1-15 . DOI: 10.1103/PhysRevA.97.052107 en
dc.identifier.issn 2469-9926
dc.identifier.issn 1094-1622
dc.identifier.other PURE UUID: b464487e-39c9-4636-be6c-5f22ab1cec4f
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE LINK:
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dc.description | openaire: EC/H2020/742559/EU//SQH
dc.description.abstract We investigate the experimental setup proposed in New J. Phys. 15, 115006 (2013)NJOPFM1367-263010.1088/1367-2630/15/11/115006 for calorimetric measurements of thermodynamic indicators in an open quantum system. As a theoretical model we consider a periodically driven qubit coupled with a large yet finite electron reservoir, the calorimeter. The calorimeter is initially at equilibrium with an infinite phonon bath. As time elapses, the temperature of the calorimeter varies in consequence of energy exchanges with the qubit and the phonon bath. We show how under weak-coupling assumptions, the evolution of the qubit-calorimeter system can be described by a generalized quantum jump process including as dynamical variable the temperature of the calorimeter. We study the jump process by numeric and analytic methods. Asymptotically with the duration of the drive, the qubit-calorimeter attains a steady state. In this same limit, we use multiscale perturbation theory to derive a Fokker-Planck equation governing the calorimeter temperature distribution. We inquire the properties of the temperature probability distribution close and at the steady state. In particular, we predict the behavior of measurable statistical indicators versus the qubit-calorimeter coupling constant. en
dc.format.extent 1-15
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/H2020/742559/EU//SQH
dc.relation.ispartofseries Physical Review A en
dc.relation.ispartofseries Volume 97, issue 5 en
dc.rights openAccess en
dc.subject.other Atomic and Molecular Physics, and Optics en
dc.subject.other 114 Physical sciences en
dc.title Model for calorimetric measurements in an open quantum system en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department University of Helsinki
dc.contributor.department Centre of Excellence in Quantum Technology, QTF
dc.contributor.department Iteratec GmbH
dc.contributor.department Department of Applied Physics en
dc.subject.keyword Atomic and Molecular Physics, and Optics
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201806183361
dc.identifier.doi 10.1103/PhysRevA.97.052107
dc.type.version publishedVersion

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