Boosting Work Extraction in Quantum Batteries via Continuous Environment Monitoring

TL;DR

This paper demonstrates that continuous environment monitoring can reduce quantum correlations between a battery and charger, thereby increasing the work extractable from quantum batteries beyond traditional limits, as shown in specific quantum models.

Contribution

It introduces a novel method of using continuous environment monitoring to enhance work extraction in quantum batteries, surpassing previous closed-system limits.

Findings

Monitoring reduces quantum correlations and improves work extraction.

Applicable to cavity-mediated spin-spin and Dicke quantum battery models.

Enhances quantum battery performance beyond ideal isolated systems.

Abstract

Quantum correlations that typically develop between a quantum battery and its charger reduce the amount of work extractable from the battery. We show that by coupling the system with an additional environment that can be continuously monitored, one can weaken these correlations and enhance work extraction beyond what is achievable in the ideal (closed system) limit. This general mechanism is illustrated using both a cavity-mediated spin-spin and Dicke quantum battery models.