论文标题
人口捕获一对定期驱动的rydberg原子
Population trapping in a pair of periodically driven Rydberg atoms
论文作者
论文摘要
我们在定期驱动的Rydberg对中广泛研究了人口捕获。原子光的周期性调节有效地抑制了拉比耦合，并与Rydberg-Rydberg的相互作用一起导致州依赖性种群陷阱。我们确定了一个简单而又一般的方案，可以使用驱动引起的共振，浮谱和反向参与率来确定人口捕获区域。与单个原子案例相反，我们表明，在两种原子设置中的种群陷阱不一定与浮子光谱中的水平交叉点有关。此外，我们讨论在哪些标准人群捕获可能与动态稳定有关，以动态稳定为导致特定和实验相关的初始状态，其中包括产品和最大纠缠的铃铛状态。纠缠状态的行为进一步以两部分纠缠熵为特征。
We study the population trapping extensively in a periodically driven Rydberg pair. The periodic modulation of the atom-light detuning effectively suppresses the Rabi couplings and, together with Rydberg-Rydberg interactions, leads to the state-dependent population trapping. We identify a simple yet a general scheme to determine population trapping regions using driving induced resonances, the Floquet spectrum, and the inverse participation ratio. Contrary to the single atom case, we show that the population trapping in the two-atom setup may not necessarily be associated with level crossings in the Floquet spectrum. Further, we discuss under what criteria population trapping can be related to dynamical stabilization, taking specific and experimentally relevant initial states, which include both product and the maximally entangled Bell states. The behavior of the entangled states is further characterized by the bipartite entanglement entropy.
