论文标题
具有动态场理论的驱动驱动性玻色子的稳态量子zeno效应
Steady-State Quantum Zeno Effect of Driven-Dissipative Bosons with Dynamical Mean-Field Theory
论文作者
论文摘要
我们在每个晶格部位都存在两个粒子损失和不连贯的单粒子驱动器，从而研究了有限密度的固定态，我们研究了一个驱动的散发性玻色 - 哈伯德模型。使用动态平均场理论（DMFT）和基于相关Lindbladian的精确对角线化的杂质求解器，我们研究了强两粒子损失的状态。在这里，如在现场占用和光谱功能中可以看出的固定状态量子Zeno效应。我们表明，DMFT通过其自洽的浴场捕捉了这种效果。我们表明，在深层Zeno政权中，浴室结构简化了，除了一个被指数抑制的浴场外，所有浴场的占领。结果，出现了有效的耗散硬核bose-Hubbard二聚体模型，其中辅助浴位位点具有由Zeno耗散量表控制的单粒子耗散。
We study a driven-dissipative Bose-Hubbard model in presence of two-particle losses and an incoherent single-particle drive on each lattice site, leading to a finite-density stationary state. Using dynamical mean-field theory (DMFT) and an impurity solver based on exact diagonalization of the associated Lindbladian, we investigate the regime of strong two-particle losses. Here, a stationary-state quantum Zeno effect emerges, as can be seen in the on-site occupation and spectral function. We show that DMFT captures this effect through its self-consistent bath. We show that, in the deep Zeno regime, the bath structure simplifies, with the occupation of all bath sites except one becoming exponentially suppressed. As a result, an effective dissipative hard-core Bose-Hubbard dimer model emerges, where the auxiliary bath site has single-particle dissipation controlled by the Zeno dissipative scale.
