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arXiv · 1702.04900

Spectral representation of the heat current in a driven Josephson junction

P. Virtanen·P. Solinas·F. Giazotto
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Abstract

We discuss thermal transport through a Josephson junction in a time-dependent situation. We write the spectral representation of the heat current pumped by a generic drive. This enables separation of the dissipative and reactive contributions, of which the latter do not contribute to long-time averages. We discuss the physical interpretation, and note that the condensate heat current identified in [K. Maki and A. Griffin, Phys. Rev. Lett. 15, 921 (1965)] is purely reactive. The results enable a convenient description of heat exchanges in a Josephson system in the presence of an external drive, with possible applications for the implementation of new cooling devices.

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P. Virtanen, P. Solinas, F. Giazotto. 2017-02-16. Spectral representation of the heat current in a driven Josephson junction. https://doi.org/10.1103/physrevb.95.144512

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