Propagation of dark soliton interacting with domain wall in two immiscible Bose-Einstein condensates
Propagation of dark soliton interacting with domain wall in two immiscible Bose-Einstein condensates
复制标题
暗孤子在两种不混溶的玻色爱因斯坦凝聚中与畴壁相互作用的传播
DOI：
10.1088/1674-1056/ab457e
复制
发表时间：
2019
影响因子：
1.7
通讯作者：
Liu Chao Fei
中科院分区：
文献类型：
--
作者：
Zheng Lang;Zhang Yi Cai;Liu Chao Fei
Reflection and transmission are two behaviors of wave propagating to an interface. The immiscible binary mixtures of Bose–Einstein condensates can form the symmetry-breaking state, in which the domain wall on the center can serve as the interface. In this study, we explore in detail the propagation of a dark soliton interacting with the domain wall in the harmonic trap. We find that the low-energy dark soliton is easy to form the transmission and the high-energy dark soliton trends to reflect from the domain wall. Both reflection and transmission of dark soliton on the domain wall induce the sound radiation. But the sound radiation in the reflection derives from the collective oscillation of condensates, and it in the transmission comes not only from the collective oscillation, but also from the condensate filling in the dark soliton.
