哈伯德-霍尔斯泰因量子电池的充放电：具体机制与一般性见解
Charging and Discharging a Hubbard-Holstein Quantum Battery: Specific Mechanisms and General Insights
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中文总结 AI 辅助
该研究以哈伯德-霍尔斯泰因量子电池为对象，明确其能量存储机制，提出基于光谱匹配的现实功提取协议，发现量子电池的能量存储微观机制会限制高效提取能量的系统类别。
中文摘要 AI 辅助
哈伯德-霍尔斯泰因二聚体作为一种关联驱动的量子电池，在某些条件下即使存在耗散也能稳健存储功。我们发现，虽然最优功提取原则上可回收所有存储能量，但需要不切实际的精细调谐耦合；相比之下，基于电池与负载间光谱匹配的物理可实现协议，可实现大量但非最优的能量提取。我们的结果明确了量子能量存储的机制，提供了一条可用于基于机器学习的理论探索的现实功提取路径，并表明量子电池可能并非普遍可部署：负责存储能量的微观机制会限制能高效提取能量的系统类别。
英文摘要
A Hubbard-Holstein dimer functions as a correlation-driven quantum battery, with ergotropy robustly stored, under some conditions, even in the presence of dissipation. We find that, although optimal work extraction can in principle recover all the stored energy, it requires unrealistically fine-tuned couplings. By contrast, a physically realizable protocol based on spectral matching between the battery and the load achieves substantial, albeit suboptimal, energy extraction. Our results identify a mechanism for quantum energy storage, provide a realistic route to work extraction that is amenable to machine-learning-based theoretical exploration, and suggest that quantum batteries may not be universally deployable: the microscopic mechanism responsible for storing energy can constrain the classes of systems able to efficiently extract it.
