paper

Coherent control of thermoelectric currents and noise in quantum thermocouples

arXiv:2307.13319 · doi:10.1103/PhysRevB.109.045429

Abstract

Three-terminal coherent conductors are able to perform as quantum thermocouples when the heat absorbed from one terminal is transformed into useful power in the other two. Allowing for a phase coherent coupling to the heat source, we introduce a way to control and improve the thermoelectric response via quantum interference. A simple setup composed of a scanning probe between two resonant tunneling regions is proposed that achieves better performance than incoherent analogs by enhancing the generated power and efficiency, and reducing the output current noise.

11 pages, 10 figures

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