Special breathing structures induced by bright solitons collision in a binary dipolar Bose–Einstein condensates

Author:

Zhang 张 Gen 根,Lv 吕 Li-Zheng 李政,Gao 高 Peng 鹏,Yang 杨 Zhan-Ying 战营

Abstract

We numerically investigate the breathing dynamics induced by collision between bright solitons in a binary dipolar Bose–Einstein condensates, whose dipole–dipole interaction and contact interaction are attractive. We identify three special breathing structures, such as snakelike special breathing structure, mixed breathing structure, and divide breathing structure. The characteristics of these breathing structures can be described by breathing frequency Ω, maximum breathing amplitude A and lifetime τ, which can be manipulated by atomic number Ni and interspecies scattering length a 12. Meanwhile, the above breathing structures can realize the process of quasi-transition with a reasonable Ni and a 12. Additionally, the collision of two special breathing structures also can bring more abundant breathing dynamics. Our results provide a reference for the study of soliton interactions and deepen the understanding of soliton properties in a binary dipolar Bose–Einstein condensates.

Publisher

IOP Publishing

Subject

General Physics and Astronomy

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