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Quest for absolute zero in presence of external noise

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dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Materiales Nano-Estructurados y Multifuncionaleses
dc.contributor.authorTorrontegui Muñoz, Erik
dc.contributor.authorKosloff, Ronnie
dc.date.accessioned2021-03-15T10:58:01Z
dc.date.available2021-03-15T10:58:01Z
dc.date.issued2013-09
dc.description.abstractA reciprocating quantum refrigerator is analyzed with the intention to study the limitations imposed by external noise. In particular we focus on the behavior of the refrigerator when it approaches the absolute zero. The cooling cycle is based on the Otto cycle with a working medium constituted by an ensemble of noninteracting harmonic oscillators. The compression and expansion segments are generated by changing an external parameter in the Hamiltonian. In this case the force constant of the harmonic oscillators momega2 is modified from an initial to a final value. As a result, the kinetic and potential energy of the system do not commute causing frictional losses. By proper choice of scheduling function omega(t) frictionless solutions can be obtained in the noiseless case. We examine the performance of a refrigerator subject to noise. By expanding from the adiabatic limit we find that the external noise, Gaussian phase, and amplitude noises reduce the amount of heat that can be extracted but nevertheless the zero temperature can be approached.en
dc.description.sponsorshipWe are grateful to Y. Rezek and A. Levy for fruitful discussions. We acknowledge funding by Projects No. IT472-10, No. FIS2009-12773-C02-01, No. FIS2012-36673-C03-01, UPV/EHU program UFI 11/55, and the Israel Science Foundation (ISF).en
dc.format.extent6
dc.identifier.bibliographicCitationTorrontegui, E. y Kosloff, R. (2013). Quest for absolute zero in the presence of external noise. Physical Review E, 88(3).en
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevE.88.032103
dc.identifier.issn1539-3755
dc.identifier.publicationfirstpage032103-1
dc.identifier.publicationissue3
dc.identifier.publicationlastpage032103-6
dc.identifier.publicationtitlePhysical Review Een
dc.identifier.publicationvolume88
dc.identifier.urihttps://hdl.handle.net/10016/32138
dc.identifier.uxxiAR/0000026561
dc.language.isoeng
dc.publisherAmerican Physical Societyen
dc.rights©2013 American Physical Societyen
dc.rights.accessRightsopen accessen
dc.subject.ecienciaFísicaes
dc.titleQuest for absolute zero in presence of external noiseen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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