Kicked-Ising Quantum Battery

Abstract:Entanglement has been identified as a key resource for enhancing charging performance in quantum batteries. We show that the kicked-Ising model at the self-dual point provides an explicit charging mechanism, where maximal entanglement growth yields maximal energy injection. Identifying the Floquet dynamics as a Clifford quantum cellular automata and considering exact diagonalization in momentum space, we analytically characterize the charging process, featuring a stable performance while achieving maximal charging. We further propose a fixed time window protocol that accelerates charging toward the continuously driven transverse-field limit. Spin-correlator analysis reveals that scrambling and light-cone spreading govern charging performance. The protocols remain compatible with diverse platforms, underscoring their scalability and practical feasibility.

Main text: 8 pages, 7 figures. Supplemental Material: 29 pages, 9 figures

Quantum Physics (quant-ph); Statistical Mechanics (cond-mat.stat-mech); Chaotic Dynamics (nlin.CD)

arXiv:2511.17835 [quant-ph]

(or arXiv:2511.17835v2 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2511.17835 Focus to learn more arXiv-issued DOI via DataCite

Phys. Rev. Lett. 137, 050404 (2026)

https://doi.org/10.1103/j35s-xv5k Focus to learn more DOI(s) linking to related resources

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