Thermal rectification in nonlinear quantum circuits

T. Ruokola, T. Ojanen, Antti-Pekka Jauho

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    Abstract

    We present a theoretical study of radiative heat transport in nonlinear solid-state quantum circuits. We give a detailed account of heat rectification effects, i.e., the asymmetry of heat current with respect to a reversal of the thermal gradient, in a system consisting of two reservoirs at finite temperatures coupled through a nonlinear resonator. We suggest an experimentally feasible superconducting circuit employing the Josephson nonlinearity to realize a controllable low-temperature heat rectifier with a maximal asymmetry of the order of 10%. We also discover a parameter regime where the rectification changes sign as a function of temperature.
    Original languageEnglish
    JournalPhysical Review B Condensed Matter
    Volume79
    Issue number14
    Pages (from-to)144306
    ISSN0163-1829
    DOIs
    Publication statusPublished - 2009

    Bibliographical note

    Copyright 2009 American Physical Society

    Keywords

    • Josephson effect
    • heat radiation
    • rectification

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