Nature Communications 17, 359 (2026)

Simon Sundelin, Mohammed Ali Aamir, Vyom Manish Kulkarni, Claudia Castillo-Moreno, Simone Gasparinetti

 

Preprint Published version

We demonstrate a quantum thermal machine that uses dephasing noise as a resource for refrigeration. The setup features a superconducting artificial molecule coupled to two microwave waveguides acting as thermal reservoirs, with a third channel introducing tunable dephasing noise. By adjusting noise and temperature gradients, the system functions as a quantum refrigerator, engine, or accelerator. Measuring heat currents below 10⁻¹⁸ watts, this platform enables exploration of quantum thermodynamics in engineered thermal environments.