Publication:
Heat Current Characteristics in Nanojunctions with Superconducting Leads

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col.comunidadvinculadaComunidad científica colombianaes_CO
col.contrato0005-2013es_CO
col.date.proyecto2013-02
col.programa.colcienciasPrograma Nacional de Ciencias Básicases_CO
col.tipo.espGeneración de contenidos impresos, radiales, audiovisuales, multimedia, virtuales y Creative Commonses_CO
dc.audienceAdministradores de ciencia y tecnologíaes_CO
dc.audienceInvestigadoreses_CO
dc.coverage.spatialColombiaes_CO
dc.creatorOettinger, David
dc.creatorChitra, R.
dc.creatorRestrepo, Juliana
dc.creator.corporativoUniversidad de Antioquia, UdeAes_CO
dc.creator.mailjulianrestrepo@uan.edu.coes_CO
dc.date.accessioned2019-03-17T21:32:47Z
dc.date.available2019-03-17T21:32:47Z
dc.date.embargoEndinfo:eu-repo/date/embargoEnd/2024-01-31es_CO
dc.date.issued2014-02-12
dc.description.abstractControlled heat flow has been a longstanding quest in solid state physics as this is a fundamental requisite for thermotronics. Recently, there has been a lot of interest in nanoscale hybrid systems as possible candidates for thermal devices. In this context, we study the heat current in the simplest hybrid device of a two level system weakly coupled to two heat baths. We use the reduced density matrix approach coupled with a simple Born-Markov approximation to calculate the heat current in the steady state. We consider different kinds of reservoirs and show that the nature of the reservoir plays a very important role in determining the thermal characteristics of the device. In particular, we investigate the effectiveness of a conventional superconductor as a reservoir with regard to manipulating the heat current. In the emergent temperature characteristics, we find that superconductivity in the reservoirs leads to enhanced thermal currents and that the superconducting phase transition is clearly visible in the heat current. We observe negative differential thermal conductance and a pronounced rectification of the heat current making this a good building block for a quantum thermal diode.es_CO
dc.description.isprojectnoes_CO
dc.description.projectid1115-569-34912es_CO
dc.description.sponsorshipDepartamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colcienciases_CO
dc.formatpdfes_CO
dc.format.extent10 páginases_CO
dc.identifier.urihttp://repositorio.colciencias.gov.co/handle/11146/34070
dc.language.isoenges_CO
dc.relation.ispartofBaños térmicos cuánticos: influencia de la no-gaussianidad estadística y no-localidad dinámica en la evolución temporal de sistemas cuánticos abiertos. La publicación completa está disponible en : <a href="http://repositorio.colciencias.gov.co/handle/11146/34053" target="blank">http://repositorio.colciencias.gov.co/handle/11146/34053</a>es_CO
dc.rightsinfo:eu-repo/semantics/embargoedAccesses_CO
dc.subject.lembTermodinámicaes_CO
dc.subject.lembModelos matemáticoses_CO
dc.subject.lembTeoría de Born-Markoves_CO
dc.subject.spinesMétodos de simulaciónes_CO
dc.subject.spinesFuerzas moleculareses_CO
dc.subject.spinesPropiedades termodinámicases_CO
dc.titleHeat Current Characteristics in Nanojunctions with Superconducting Leadses_CO
dc.typeOtroses_CO
dc.type.driverinfo:eu-repo/semantics/other.generacióndecontenidoses_CO
dc.type.hasversioninfo:eu-repo/semantics/allowedVersiones_CO
dspace.entity.typePublication

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