Rapid-stable Collective Charging and Reverse Suppressing in Many-Body Quantum Batteries

Abstract: Two major challenges in the process of practical development of quantum batteries (QBs) are: how to achieve rapid-stable charging, i.e., the maximum extractable work quantified via ergotropy, and how to identify the reverse mechanism of rapid-stable charging and propose contrary control strategies in many-body quantum systems. This work proposes a strongly coupled many-body collective charging QB scheme interacting with the surrounding environment, analyzes its physical operating mechanisms as a battery system, explores the mechanisms for achieving fast and stable collective charging under strong environmental coupling, and provides a detailed analysis of various physical methods for suppressing the reverse mechanism. This work highlights the novel properties of many-body QB systems and advances the physical research needed to accelerate the practical application of QBs.