AI 中文总结
该研究分析里德堡合成晶格中AB笼崩溃的机制，发现非均匀近邻交换会打破EPS产生色散态实现离域输运，长程交换与之耦合会改变扩散轮廓，为相关输运机制提供分析理解。
AI 中文摘要
通常，相互作用诱导的阿哈罗诺夫-玻姆（AB）笼崩溃被归因于均匀束缚对输运，而用里德堡合成晶格实现的具有非均匀交换相互作用的系统则表现出更复杂的动力学。我们采用最近开发的演化路径对称性（EPS）框架，通过福克空间中的路径干涉分析两粒子动力学。我们发现，无论是否存在长程交换相互作用，均匀的近邻交换相互作用都无法打破AB笼。相反，我们证明非均匀近邻交换相互作用会打破相消干涉的EPS，并解除多体紧凑局域态的简并，从而产生非局域的色散本征态。因此，初始态与这些色散态获得非零重叠，实现离域输运。此外，虽然单独的长程交换相互作用会保留AB笼，但它与近邻非均匀交换相互作用的耦合会打开无法抵消的路径，改变扩散轮廓。我们的工作将微观路径干涉与宏观光谱重组联系起来，为理解里德堡合成晶格中交换相互作用诱导输运的机制提供了分析依据。
英文摘要
While the interaction-induced breakdown of Aharonov-Bohm (AB) cage is typically attributed to uniform bound-pair transport, systems with inhomogeneous exchange interactions realized with Rydberg synthetic lattices exhibit more complex dynamics. Employing the evolution-path symmetry (EPS) framework developed recently, we analyze the two-particle dynamics via path interference in Fock space. We find that a homogeneous nearest-neighbor exchange interaction cannot break the AB cage, regardless of whether the long-range exchange interaction is present or not. In contrast, we demonstrate that inhomogeneous nearest-neighbor exchange interaction breaks the destructive-interference EPS, and lifts the degeneracy of many-body compact localized states, thereby generating non-local dispersive eigenstates. Consequently, the initial state gains a non-zero overlap with these dispersive states, enabling delocalized transport. Furthermore, while long-range exchange interaction alone preserves the AB cage, its coupling with nearest-neighbor inhomogeneous exchange interaction opens non-canceling pathways that alter the diffusion profile. Our work connects microscopic path interference with macroscopic spectral reorganization, offering an analytical understanding of the mechanism underlying exchange-interaction-induced transport in Rydberg synthetic lattices.
Comments11 pages, 6 figures
