论文标题
冷rydberg原子气中非局部光学孤子的量子反射
Quantum Reflections of Nonlocal Optical Solitons in a Cold Rydberg Atomic Gas
论文作者
论文摘要
量子反射是指在没有经典转折点的情况下进行的非逐渐反射概率。由于它们的基本，有趣的物理和潜在的实际应用，人们对这种思考引起了很多关注。在这里，我们提出了一种方案，以实现冷rydberg原子气中非局部非线性光学束的量子反射，这是通过电磁诱导的分散型透明度的。基于Rydberg原子之间的远距离相互作用，我们发现该系统支持低功率非局部光学孤子。这种非局部孤子可以在散射的线性有吸引力的电位时，在反射，捕获和传播之间显示出急剧的跃迁，这是由存储在另一个rydberg状态下的栅极光子产生的。 Different from conventional physical systems explored up to now, the quantum reflection of the nonlocal optical solitons in the Rydberg atomic gas exhibits interesting anomalous behaviors, which can be actively manipulated by tuning the incident velocity and intensity of the probe field, as well as the nonlocality of the Kerr nonlinearity inherent in the Rydberg atomic gas.此处报告的结果不仅可用于开发Rydberg非线性光学元件，而且有助于表征Rydberg气体的物理特性和设计新型的非线性光学设备。
Quantum reflection refers to a non-vanishing reflection probability in the absence of a classically turning point. Much attention has been paid to such reflections due to their fundamental, intriguing physics and potential practical applications. Here we propose a scheme to realize a quantum reflection of nonlocal nonlinear optical beams in a cold Rydberg atomic gas via electromagnetically induced transparency working in a dispersion regime. Based on the long-range interaction between Rydberg atoms, we found that the system supports low-power nonlocal optical solitons. Such nonlocal solitons can display a sharp transition between reflection, trapping, and transmission when scattered by a linear attractive potential, created by gate photons stored in another Rydberg state. Different from conventional physical systems explored up to now, the quantum reflection of the nonlocal optical solitons in the Rydberg atomic gas exhibits interesting anomalous behaviors, which can be actively manipulated by tuning the incident velocity and intensity of the probe field, as well as the nonlocality of the Kerr nonlinearity inherent in the Rydberg atomic gas. The results reported here are not only useful for developing Rydberg nonlinear optics but also helpful for characterizing the physical property of the Rydberg gas and for designing novel nonlinear optical devices.
