Time resolved heat exchange in driven quantum systems

TL;DR

This paper investigates the dynamics of heat transfer in a driven quantum system, revealing non-Joule behavior of heat currents at high frequencies, with implications for quantum energy management.

Contribution

It introduces a model for time-resolved heat exchange in a driven quantum resonant level, highlighting non-adiabatic effects and deviation from classical Joule dissipation laws.

Findings

Heat current does not follow Joule law in non-adiabatic regime.

System models quantum capacitors acting as single-particle emitters.

Non-adiabatic driving leads to unique energy exchange behaviors.

Abstract

We study time-dependent heat transport in systems composed of a resonant level periodically forced with an external power source and coupled to a fermionic continuum. This simple model contains the basic ingredients to understand time resolved energy exchange in quantum capacitors that behave as single particle emitters. We analyse the behaviour of the dynamic heat current for driving frequencies within the non-adiabatic regime, showing that it does not obey a Joule dissipation law.