Transverse interactions in Dicke QBs induce collective spin squeezing for exponential coupling boost and act as nonlinear torque to guide optimal charging paths, remaining robust under dissipation and sometimes outperforming ideal cases.
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Ergotropy in the battery corresponds one-to-one with total nonstabilizerness under U(1)-symmetric charger-battery interactions, while maximum average charging power in Clifford evolution is achievable even with zero initial magic.
A transmon quantum battery charged by coherent ancillas achieves improved control of stored energy and extraction in experimentally accessible parameter regimes.
Cavity coupling suppresses self-discharging in open quantum batteries, with coherence and larger sizes improving long-time ergotropy retention.
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Spin-Squeezing-Enhanced Charging for Quantum Dicke Batteries
Transverse interactions in Dicke QBs induce collective spin squeezing for exponential coupling boost and act as nonlinear torque to guide optimal charging paths, remaining robust under dissipation and sometimes outperforming ideal cases.
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Interplay of Nonstabilizerness and Ergotropy in Quantum Batteries
Ergotropy in the battery corresponds one-to-one with total nonstabilizerness under U(1)-symmetric charger-battery interactions, while maximum average charging power in Clifford evolution is achievable even with zero initial magic.
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Collisional charging of a transmon quantum battery
A transmon quantum battery charged by coherent ancillas achieves improved control of stored energy and extraction in experimentally accessible parameter regimes.
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Suppressing Self-Discharging of Quantum Batteries by Cavity Interactions
Cavity coupling suppresses self-discharging in open quantum batteries, with coherence and larger sizes improving long-time ergotropy retention.