Antiblockade Quantum Batteries

Guohui Dong; Yao Yao

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arXiv · 2609.27407

Antiblockade Quantum Batteries

Guohui Dong·Yao Yao

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Abstract

Blockade, a phenomenon in which one particle hinders the transport of another, constitutes a core research topic in mesoscopic and microscopic physics. Benefiting from the unique single-particle characteristics, it underpins versatile applications spanning from quantum computation to quantum metrology. Nevertheless, in the context of quantum energy?storage devices, i.e., quantum batteries (QBs), blockade triggered by the intrinsic level splitting is in turn detrimental to energy accumulation. Here we propose an antiblockade charging protocol enabled by deliberately engineering a bright-dark interaction. Rooted in a manifold of equally-spaced dressed-dark states, this elaborate configuration opens up a new charging channel facilitating an antiblockade energy flow and outperforms the Rabi-split blockade design with at least a 20-fold enhancement in energy storage. Additionally, we further illustrate the achievement of superextensive (quadratic) charging characteristic by operating the system in the bad-cavity limit. In view of its inherent generality, our scheme offers a universal and feasible pathway toward high-performance quantum energy architectures.

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Guohui Dong, Yao Yao. 2026-09-23. Antiblockade Quantum Batteries. https://arxiv.org/abs/2609.27407

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