Creation and evolution of trains of dark solitons in a trapped one-dimensional Bose-Einstein condensate
Creation and evolution of trains of dark solitons in a trapped one-dimensional Bose-Einstein condensate
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DOI：
10.1103/physreva.68.043614
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发表时间：
2003-10
影响因子：
2.9
通讯作者：
V. Brazhnyi;A. Kamchatnov
中科院分区：
文献类型：
--
作者：
V. Brazhnyi;A. Kamchatnov
用解析和数值方法研究了一维玻色-爱因斯坦凝聚体中大初始激发下暗孤子的产生及其演化。我们考虑三种不同的技术可控创建的多孤子结构（孤子列车）从大的初始激发和计算其初始参数（深度和速度）与使用的广义玻尔-索末菲量子化规则。讨论了多孤子效应。
The generation of dark solitons from large initial excitations and their evolution in a one-dimensional Bose-Einstein condensate trapped by a harmonic potential is studied analytically and numerically. We consider three different techniques of controllable creation of multisoliton structures (soliton trains) from large initial excitations and calculate their initial parameters (depths and velocities) with the use of a generalized Bohr-Sommerfeld quantization rule. Multisoliton effects are discussed.