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quant-ph2026
Ergotropy of nonequilibrium steady states beyond the full secular approximation
Xing-Xing Hu, Hui-Yu Yang, Kun Zhang +1
Understanding the generation and activation of ergotropy, the maximum work extractable by cyclic unitary operations, is central to quantum battery research. Positive-temperature th…
quant-ph2026
Emergent mirror symmetry in the optimization of the central-spin quantum battery
Hui-Yu Yang, Kun Zhang, Xiao-Hui Wang +1
Quantum batteries provide a useful setting for exploring nonequilibrium many-body effects in energy storage. Here we investigate the optimization of a quantum battery based on the…