Authors
Sebastián V Romero, Xi Chen, Yue Ban
Published in
Physical review letters. Volume 137. Issue 5. Pages 050404. Jul 31, 2026.
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.
PMID:
42606452
Bibliographic data and abstract were imported from PubMed on 17 Aug 2026.
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