论文标题
rydberg原子的量子阶段在kagome晶格上
Quantum phases of Rydberg atoms on a kagome lattice
论文作者
论文摘要
我们分析了Kagome晶格上一系列中性原子的零温度阶段，通过激光激发与原子Rydberg状态相互作用。密度 - 矩阵重新归一化组的计算揭示了存在晶格对称性损坏的各种复杂固相。此外，我们确定了一种具有密集的Rydberg激发的新型制度，该方案具有较大的纠缠熵，并且没有与晶格对称性相关的局部顺序参数。从映射到三角晶格量子二聚体模型，以及量子相变的理论从近端的实心阶段出现，我们认为该制度可以包含具有拓扑顺序的一个或多个阶段。我们的结果为基于基于Rydberg Atom阵列的可编程量子模拟器对晶体和液态的理论和实验探索奠定了基础。
We analyze the zero-temperature phases of an array of neutral atoms on the kagome lattice, interacting via laser excitation to atomic Rydberg states. Density-matrix renormalization group calculations reveal the presence of a wide variety of complex solid phases with broken lattice symmetries. In addition, we identify a novel regime with dense Rydberg excitations that has a large entanglement entropy and no local order parameter associated with lattice symmetries. From a mapping to the triangular lattice quantum dimer model, and theories of quantum phase transitions out of the proximate solid phases, we argue that this regime could contain one or more phases with topological order. Our results provide the foundation for theoretical and experimental explorations of crystalline and liquid states using programmable quantum simulators based on Rydberg atom arrays.
