近日，意大利阿卜杜勒·萨拉姆国际理论物理中心Ludmila Viotti团队研究了耗散量子电池中的几何相位。相关论文于2025年12月24日发表在《物理评论A》杂志上。

研究组分析了不同受驱开放量子系统作为量子电池模型在非绝热充电过程中积累的几何相位。他们针对超导电路实现中常见的各类噪声，对系统动力学进行了完整的数值分析，并以无噪声极限情况（即孤立系统）下的解析结果作为补充。

通过计算量子电池在状态跃迁期间获得的非幺正几何相位，研究组发现所积累的几何相位与跃迁过程中的存储能量积分存在直接关联。最后，他们对一个依赖于退相位充电器的二分量子电池进行相同分析，得到了类似结论。该理论研究成果有望通过当前先进实验技术得以验证。

附：英文原文

Title: Geometric phase in dissipative quantum batteries

Author: Camila Cristiano, Ludmila Viotti, Paula I. Villar

Issue&Volume: 2025/12/24

Abstract: We study the geometric phase accumulated during nonadiabatic charging of different driven open quantum systems serving as quantum battery models. We provide a full numerical analysis of dynamics under different types of noises typically reported in superconducting circuit implementations. We complement the study with analytic results derived in the limiting case of no noise (i.e., isolated systems). We compute the nonunitary geometric phase acquired by the quantum batteries during the transition and show that there is a direct relation between the accumulated geometric phase and the integral of the stored energy during the transition. Finally, we perform the same analysis on a bipartite quantum battery that relies on a dephased charger and find similar results. Our theoretical findings are within experimental reach using state-of-the-art techniques.

DOI: 10.1103/whs2-dkgh

Source: https://journals.aps.org/pra/abstract/10.1103/whs2-dkgh