Propagation of dark soliton interacting with domain wall in two immiscible Bose–Einstein condensates*

Project supported by the National Natural Science Foundation of China (Grant Nos. 61565007, 11875149, 11747079, and 11874127), the Science Fund from the Department of Science and Technology of Jiangxi Province, China (Grant Nos. 20162BCB23049 and 20171ACB21045), the Youth Jinggang Scholars Program in Jiangxi Province, China, and the Program of Qingjiang Excellent Yong Talents, Jiangxi University of Science and Technology, China.

Zheng Lang1, 2, Zhang Yi-Cai3, Liu Chao-Fei2, †
       

Critical transmission of dark solitons interacting with domain wall, where initial position of dark soliton is set to be at −6.2ξ. (a) Density of BEC 1, (b) density of BEC 2, (c) density of the whole condensates, and (d) sound radiation of condensates.