Indian Institute of Science Education and Research, Pune 411 008, India.
Phys Rev Lett. 2018 Mar 23;120(12):123204. doi: 10.1103/PhysRevLett.120.123204.
An array of single Rydberg atoms driven by a temporally modulated atom-field detuning is studied. The periodic modulation effectively modifies the Rabi coupling, leading to unprecedented dynamics in the presence of Rydberg-Rydberg interactions, in particular, blockade enhancement, antiblockades, and state-dependent population trapping. Interestingly, the Schrieffer-Wolf transformation reveals a fundamental process in Rydberg gases, correlated Rabi coupling, which stems from the extended nature of the Rydberg-Rydberg interactions. Also, the correlated coupling provides an alternative depiction for the Rydberg blockade, exhibiting a nontrivial behavior in the presence of periodic modulation. The dynamical localization of a many-body configuration in a driven Rydberg lattice is discussed.
研究了由时域调制原子-场失谐驱动的单 Rydberg 原子阵列。周期性调制有效地改变了拉比耦合，导致在存在 Rydberg-Rydberg 相互作用的情况下出现了前所未有的动力学，特别是阻塞增强、反阻塞和状态相关的俘获。有趣的是，Schrieffer-Wolf 变换揭示了 Rydberg 气体中的一个基本过程，即相关的拉比耦合，这源于 Rydberg-Rydberg 相互作用的扩展性质。此外，相关耦合为 Rydberg 阻塞提供了另一种描述，在存在周期性调制的情况下表现出非平凡的行为。讨论了在驱动的 Rydberg 晶格中多体构型的动力学局域化。
