Annihilation and recurrence of vortex-antivortex pairs in two-component Bose-Einstein condensates
Annihilation and recurrence of vortex-antivortex pairs in two-component Bose-Einstein condensates
复制标题
二元玻色-爱因斯坦凝聚体中涡旋-反涡旋对的湮灭和重现
DOI：
10.1103/physreva.103.053313
复制
发表时间：
2021
影响因子：
2.9
通讯作者：
Tsubota Makoto
中科院分区：
文献类型：
--
作者：
Han Junsik;Tsubota Makoto
涡旋-反涡旋对的湮灭是二维玻色-爱因斯坦凝聚（BEC）中的一个关键事件。众所周知，耗散或催化剂涡是需要在单组分玻色-爱因斯坦凝聚物中湮灭的对。我们数值证实，在两个组件的BEC的对可以湮灭，即使没有任何耗散或催化剂涡时，组件间的相互作用是强的。此外，在某些条件下，该对在两个分量中交替地重新创建，我们称之为递归。
The annihilation of vortex-antivortex pairs is a key event in two-dimensional Bose-Einstein condensates (BECs). It is known that dissipation or a catalyst vortex is required for the annihilation of the pairs in one-component BECs. We numerically confirmed in two-component BECs that the pairs can be annihilated even without any dissipation or catalyst vortices when the intercomponent interaction is strong. In addition, the pair is recreated alternately in two components under certain conditions, which we call the recurrence.