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arXiv 2005.10003physics.opticsnlin.PSphysics.atom-phquant-ph
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冷里德伯原子气体中非局域光孤子的量子反射

Quantum Reflections of Nonlocal Optical Solitons in a Cold Rydberg Atomic Gas

Zhengyang Bai, Qi Zhang, Guoxiang Huang

摘要:

量子反射是指在没有经典转折点的情况下反射概率不为零。由于其基础性、有趣的物理性质和潜在的实际应用价值,人们对这类反射现象给予了极大的关注。本文提出了一种利用色散区的电磁感应透明实现非局域非线性光束在冷里德伯原子气体中的量子反射的方案。基于里德伯原子之间的长程相互作用,我们发现该系统支持低功率的非局域光孤子。这种非局域孤子可以显示反射,捕获和传输之间的急剧转变时,由存储在另一个里德堡态的门光子产生的线性吸引势散射。与以往研究的常规物理系统不同,Rydberg原子气体中非局域光孤子的量子反射表现出有趣的反常行为,可以通过调节探测光场的入射速度和强度以及Rydberg原子气体固有的Kerr非线性的非局域性来主动调控.所得结果不仅对发展里德伯非线性光学有重要意义,而且对表征里德伯气体的物理性质和设计新型的非线性光学器件也有一定的帮助。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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