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arXiv · 2511.17835

Kicked-Ising Quantum Battery

Sebastián V. Romero·Xi Chen·Yue Ban
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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.

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Sebastián V. Romero, Xi Chen, Yue Ban. 2025-11-21. Kicked-Ising Quantum Battery. https://doi.org/10.1103/j35s-xv5k

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