Phase-coherent caloritronics with ordinary and topological Josephson junctions

Abstract

We provide a brief and comprehensive overview over recent developments in the field of phasecoherent caloritronics in ordinary and topological Josephson junctions. We start from the simple case of a short, one-dimensional superconductor-normal metal-superconductor (S-N-S) Josephson junction and derive the phase-dependent thermal conductance within the Bogoliubov-de Gennes formalism. Then, we review the key experimental breakthroughs that have triggered the recent growing interest into phasecoherent heat transport. They include the realization of thermal interferometers, diffractors, modulators and routers based on superconducting tunnel junctions. Finally, we discuss very recent theoretical findings based on superconductor-topological insulator-superconductor (S-TI-S) Josephson junctions that show interesting heat transport properties due to the interplay between topological band structures and superconductivity. arXiv:1905.09262v1 [cond-mat.mes-hall]

Thermal superconducting quantum interference proximity transistor

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Temperature-biased double-loop Josephson flux transducer

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Thermodynamics of a Phase-Driven Proximity Josephson Junction

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