论文标题
驱动的触及rydberg在光学晶格中的封锁
Driven-dissipative Rydberg blockade in optical lattices
论文作者
论文摘要
尽管耗散性的Rydberg气体表现出独特的可能性来调节耗散和相互作用的特性，但对于这种长距离相互作用的开放量子系统的量子多体物理学知之甚少。理论上，我们根据差异处理中的光学晶格中的范德华相互作用的范德华相互作用的稳态，该差异处理还包括描述Rydberg封锁的物理学所需的远程相关性，即通过强烈的相互作用抑制邻近的Rydberg激发。与基态相图相反，我们发现稳态从封锁的Rydberg气体转变为升起封锁的促进阶段。一阶线路在包括足够强大的倾向时终止了一个临界点，从而实现了在这些系统中研究耗散性关键的高度前景的途径。在某些制度中，尽管存在Rydberg封锁，但我们还发现与有效的短距离模型有良好的定量一致性，证明了文献中这种现象学描述的广泛使用是合理的。
While dissipative Rydberg gases exhibit unique possibilities to tune dissipation and interaction properties, very little is known about the quantum many-body physics of such long-range interacting open quantum systems. We theoretically analyze the steady state of a van der Waals interacting Rydberg gas in an optical lattice based on a variational treatment that also includes long-range correlations necessary to describe the physics of the Rydberg blockade, i.e., the inhibition of neighboring Rydberg excitations by strong interactions. In contrast to the ground state phase diagram, we find that the steady state undergoes a single first order phase transition from a blockaded Rydberg gas to a facilitation phase where the blockade is lifted. The first order line terminates in a critical point when including sufficiently strong dephasing, enabling a highly promising route to study dissipative criticality in these systems. In some regimes, we also find good quantitative agreement with effective short-range models despite the presence of the Rydberg blockade, justifying the wide use of such phenomenological descriptions in the literature.
