发表机构
Nankai University; Hangzhou Normal University（南开大学; 杭州师范大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出基于耗散选择的多体疤痕态的自洽量子电池协议，通过工程化局域键耗散实现高效充电，并验证性能源于非热疤痕结构。
AI 中文摘要
我们提出了一种基于耗散选择的多体疤痕态的自洽量子电池协议。利用具有精确疤痕塔的嵌入型自旋链和广义相互作用的$J_1$--$J_2$链，我们展示了工程化的局域键耗散可以将系统从被动态驱动到具有大量可提取功的高能疤痕支撑流形中。由此产生的充电态表现出单副本遍历功，接近熵匹配的热力学功界，同时保留了与疤痕阶梯相关的相干结构。由于理想的疤痕流形也支持非衰减的边缘模式，我们引入弱局域退相干以获得稳定的充电协议，并发现了一个广泛的参数区域，在该区域中充电时间减少而存储功没有显著退化。最后，一个明确的疤痕破坏微扰导致疤痕支撑和可提取功的相关损失，表明良好的电池性能与非线性疤痕结构相关，而不仅仅是制备了一个通用的激发态。我们的结果确立了耗散稳定的多体疤痕态作为自主和稳健量子能量存储的有前景资源。
英文摘要
We propose an autonomous quantum-battery protocol based on dissipatively selected quantum many-body scars. Using an embedding-type spin chain with an exact scar tower and a generalized interacting $J_1$--$J_2$ chain, we show that engineered local bond dissipation can drive the system from a passive state into a high-energy scar-supported manifold with large extractable work. The resulting charged states exhibit single-copy ergotropy close to the entropy-matched thermodynamic work bound while retaining the coherent structure associated with the scar ladder. Because the ideal scar manifold also supports nondecaying peripheral modes, we introduce weak local dephasing to obtain a stable charging protocol and find a broad regime in which the charging time is reduced without substantially degrading the stored work. Finally, an explicit scar-breaking perturbation produces a correlated loss of scar support and extractable work, demonstrating that the favorable battery performance is tied to the nonthermal scar structure rather than merely to the preparation of a generic excited state. Our results establish dissipatively stabilized many-body scars as a promising resource for autonomous and robust quantum energy storage.
Comments10 pages, 7 figures
