Efficient wireless charging of a quantum battery

Speaker: 胡明亮 教授，西安邮电大学          

Inviter: 骆顺龙研究员

Title: Efficient wireless charging of a quantum battery

Time & Venue: 2025.04.25  15:30-16:30  南楼N613

Abstract: Quantum battery (QB) is a microscopic quantum device designed to temporarily store and release energy in a controllable way. In this talk, I will first recall in short some figures of merit used to assess the performance of a QB, and then report our recent work on the wireless charging of a QB via multiple charging units. A common structured reservoir, which could be implemented, e.g., by the electromagnetic field inside a lossy cavity, plays the role of the mediator for energy exchange between the charger and battery elements. We focused on a general scenario in which the charger energy is not maximal and the QB has residual ergotropy, and demonstrated how the various control parameters determine the charging performance of the QB.