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arXiv 0904.0150quant-phcond-mat.othercond-mat.quant-gasphysics.atom-phphysics.optics
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隐对称性与非线性傍轴原子光学

Hidden symmetry and nonlinear paraxial atom optics

François Impens

摘要:

本文利用非线性波方程的隐对称性,分析了傍轴均匀原子激光束在沿传播轴光滑变化的二次势和柱势中的传输。推广了品质因数和近轴ABCD形式,精确地解释了这种光束中的平均场相互作用效应。使用基于矩的方法,这些理论工具提供了一个非常简单,但相互作用的光束轮廓演变的准确图片。讨论了制导原子激光实验。这种治疗同时解决光学和原子束在一个统一的方式,利用非线性光学和非线性傍轴原子光学之间的正式类比。

英文摘要:

A hidden symmetry of the nonlinear wave equation is exploited to analyse the propagation of paraxial and uniform atom-laser beams in time-independent, quadratic and cylindrical potentials varying smoothly along the propagation axis. The quality factor and the paraxial ABCD formalism are generalized to account exactly for mean-field interaction effects in such beams. Using an approach based on moments, these theoretical tools provide a very simple and yet exact picture of the interacting beam profile evolution. Guided atom laser experiments are discussed. This treatment addresses simultaneously optical and atomic beams in a unified manner, exploiting the formal analogy between nonlinear optics and nonlinear paraxial atom optics.

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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