Self-Induced Dipole Force and Filamentation Instability of a Matter Wave
Self-Induced Dipole Force and Filamentation Instability of a Matter Wave
复制标题
物质波的自感偶极力和丝状不稳定性
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
M. Saffman
中科院分区：
文献类型：
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作者：
M. Saffman
用一组耦合的高阶非线性薛定谔方程描述了同向传播的电磁波和物质波的相互作用。光学自聚焦调制一个初始平面波，导致原子上偶极力的产生。在非线性区域，由于偶极力的原子沟道导致原子束的偏转。计算了原子束在低相空间密度和高相空间密度下的不稳定性增长率。在一个横向维度的精确解被发现，描述了一个耦合的光学和原子孤子。[S0031-9007（98）06469-2]
The interaction of copropagating electromagnetic and matter waves is described with a set of coupled higher-order nonlinear Schrodinger equations. Optical self-focusing modulates an initially planar wave leading to the generation of dipole forces on the atoms. Atomic channeling due to the dipole forces leads, in the nonlinear regime, to filamentation of the atomic beam. Instability growth rates are calculated for atomic beams with both low and high phase space densities. In one transverse dimension an exact solution is found that describes a coupled optical and atomic soliton. [S0031-9007(98)06469-2]