Spatial Phase Control of Energy and Ergotropy in Quantum Batteries

Abstract:We investigate the role of spatial geometry in controlling energy storage and work extraction in a non-Markovian quantum battery. The system consists of two identical two-level systems coupled to a structured waveguide reservoir, where one qubit serves as the charger and the other as the battery. The spatial separation between the qubits introduces a geometry-dependent phase that governs collective interference, directly modulating the decay channels and energy transfer dynamics. We show that tuning the interqubit distance allows for the engineering of bright and dark collective pathways, which, in conjunction with environmental memory, significantly enhances the charging power, maximal stored energy, and ergotropy revivals.

arXiv:2602.18192 [quant-ph]

(or arXiv:2602.18192v3 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2602.18192 Focus to learn more arXiv-issued DOI via DataCite

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