Dark solitons in a two-component Bose-Einstein condensate.
Dark solitons in a two-component Bose-Einstein condensate.
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DOI：
10.1103/physrevlett.86.2918
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发表时间：
2000-10
影响因子：
8.6
通讯作者：
Patrik Öhberg;Luis Santos
中科院分区：
文献类型：
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作者：
Patrik Öhberg;Luis Santos
研究了双组分玻色-爱因斯坦凝聚体中暗孤子的产生和相互作用。对于混溶情形，研究了不同组分暗孤子的相互作用。各种可能的情况下，包括形成一个孤子孤子绑定对。我们还分析了孤子在畴壁中的传播，发现当暗孤子的速度超过临界值时，它可以在畴壁处从一个分量传输到另一个分量。对于较低的速度多次反射内的域中观察到，孤立子蒸发和加速后，每次反射，直到它最终逃离域。
The creation and interaction of dark solitons in a two-component Bose-Einstein condensate is investigated. For a miscible case, the interaction of dark solitons in different components is studied. Various possible scenarios are presented, including the formation of a soliton-soliton bound pair. We also analyze the soliton propagation in the presence of domains, and show that a dark soliton can be transferred from one component to the other at the domain wall when it exceeds a critical velocity. For lower velocities multiple reflections within the domain are observed, where the soliton is evaporated and accelerated after each reflection until it finally escapes from the domain.