Quantum thermodynamics with a Josephson-photonics setup

TL;DR

This paper explores the use of Josephson-photonics devices for studying non-equilibrium light-charge interactions and their potential as nanoscale heat engines, focusing on cooling mechanisms in different photon regimes.

Contribution

It introduces a detailed analysis of cooling processes in Josephson-photonics setups across various photon occupancy regimes, emphasizing the role of nonlinearities.

Findings

Nonlinearities are crucial for cooling in low and high photon regimes.

Josephson-photonics devices can operate as effective nanoscale heat engines.

The study advances understanding of light-charge interactions far from equilibrium.

Abstract

Josephson-photonics devices have emerged in the last years as versatile platforms to study light-charge interactions far from equilibrium and to create nonclassical radiation. Their potential to operate as nanoscale heat engines has also been discussed. The complementary mode of cooling is investigated here in the regimes of low and large photon occupancy, where nonlinearities are essential.