Spectral representation of the heat current in a driven Josephson junction
arXiv:1702.04900 · doi:10.1103/PhysRevB.95.144512
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.
arXiv comment6 pages, 4 figures
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- Simulating time-dependent thermoelectric transport in quantum systems
- Thermal flux-flow regime in long Josephson tunnel junctions