Thermal rectification in nonlinear quantum circuits

Tomi Ruokola, Teemu Ojanen, and Antti-Pekka Jauho
Phys. Rev. B 79, 144306 – Published 27 April 2009

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.

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  • Received 27 March 2009

DOI:https://doi.org/10.1103/PhysRevB.79.144306

©2009 American Physical Society

Authors & Affiliations

Tomi Ruokola1,*, Teemu Ojanen2,†, and Antti-Pekka Jauho1,3

  • 1Department of Applied Physics, Helsinki University of Technology, P.O. Box 1100, FIN-02015 HUT, Finland
  • 2Institut für Theoretische Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
  • 3Department of Micro and Nanotechnology, Technical University of Denmark, Building 345 East, DK-2800 Kongens Lyngby, Denmark

  • *tomi.ruokola@tkk.fi
  • ojanen@physik.fu-berlin.de

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Issue

Vol. 79, Iss. 14 — 1 April 2009

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