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Many-body out-of-equilibrium dynamics of hard-core lattice bosons with nonlocal loss

机译:具有非局部损失的硬核晶格玻色子的多体失衡动力学

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摘要

We explore the dynamics of hard-core lattice bosons in the presence of strong nonlocal particle loss. The evolution occurs on two distinct time scales, first a rapid strongly correlated decay into a highly degenerate Zeno state subspace, followed by a slow almost coherent evolution. We analytically solve the fast initial dynamics of the system, where we specifically focus on an initial Mott insulator state, and perform an analysis of the particle arrangements in the Zeno subspace. We investigate the secondary slow relaxation process that follows and find an intricate regime where the competition between dissipation and coherence results in various types of interacting particle complexes. We classify them and analyze their spectral properties in the presence and absence of nearest-neighbor interactions. Under certain circumstances the dispersion relations of the complexes feature flat bands, which are a result of an effective spin-orbit coupling.
机译:我们探索了在存在强烈的非局部粒子损失的情况下硬核晶格玻色子的动力学。演化发生在两个不同的时间尺度上,首先是快速强烈相关的衰变到高度退化的芝诺状态子空间,然后是缓慢的,几乎连贯的演化。我们分析性地解决了系统的快速初始动力学问题,其中我们特别关注初始Mott绝缘子状态,并对Zeno子空间中的粒子排列进行分析。我们研究了随后的次级慢弛豫过程,并发现了一种复杂的机制,其中耗散和相干之间的竞争导致了各种类型的相互作用粒子复合物。我们对它们进行分类,并在是否存在最邻近相互作用的情况下分析其光谱特性。在某些情况下,配合物的色散关系具有平坦带,这是有效自旋轨道耦合的结果。

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