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arXiv quant-ph/0411148quant-ph
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慢光问题的精确解

An exact solution of the slow-light problem

A. V. Rybin, I. P. Vadeiko, A. R. Bishop

摘要:

研究了慢光孤子在非线性λ模型描述的原子蒸气和玻色-爱因斯坦凝聚体中的传输。研究表明,孤子的群速度随控制光场的强度单调减小,而在激光器关闭后,孤子的群速度则呈指数衰减。消失的控制场的冲击波追上慢孤子并使其停止,而光信息以空间局域偏振的形式记录在介质中。我们找到了一个明确的精确解描述的整个过程中缓慢变化的振幅和相位近似。我们的研究结果指出,解决空间定位的内存形成和移动这些内存位沿介质中的可控方式的可能性。

英文摘要:

We investigate propagation of a slow-light soliton in atomic vapors and Bose-Einstein condensates described by the nonlinear Lambda-model. We show that the group velocity of the soliton monotonically decreases with the intensity of the controlling laser field, which decays exponentially after the laser is switched off. The shock wave of the vanishing controlling field overtakes the slow soliton and stops it, while the optical information is recorded in the medium in the form of spatially localized polarization. We find an explicit exact solution describing the whole process within the slowly varying amplitude and phase approximation. Our results point to the possibility of addressing spatially localized memory formations and moving these memory bits along the medium in a controllable fashion.

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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