Stabilizing Open Quantum Batteries by Sequential Measurements

TL;DR

This paper proposes a measurement-based protocol to stabilize open quantum batteries against energy leakage, ensuring their reliable operation by controlling entropy production.

Contribution

It introduces a simple, measurement-driven stabilization protocol for open quantum batteries that adheres to a second-law-like entropy inequality.

Findings

Protocol effectively stabilizes quantum batteries against environmental leakage

Ensures entropy production remains within thermodynamic bounds

Provides a practical approach for quantum energy storage management

Abstract

A quantum battery is a work reservoir that stores energy in quantum degrees of freedom. When immersed in an environment an open quantum battery needs to be stabilized against free energy leakage into the environment. For this purpose we here propose a simple protocol that relies on projective measurement and obeys a second-law like inequality for the battery entropy production rate.