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

doi:10.1088/1674-1056/acf283

中国物理B ›› 2023, Vol. 32 ›› Issue (11): 110303-110303.doi: 10.1088/1674-1056/acf283

所属专题： SPECIAL TOPIC — Celebrating the 100th Anniversary of Physics Discipline of Northwest University

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

Gen Zhang(张根)^1,2, Li-Zheng Lv(吕李政)^1,2, Peng Gao(高鹏)³, and Zhan-Ying Yang(杨战营)^1,2,4,†

1 School of Physics, Northwest University, Xi'an 710127, China;
2 Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi'an 710127, China;
3 Graduate School, China Academy of Engineering Physics, Beijing 100193, China;
4 Peng Huanwu Center for Fundamental Theory, Xi'an 710127, China

收稿日期:2023-06-30 修回日期:2023-08-12 接受日期:2023-08-22 出版日期:2023-10-16 发布日期:2023-11-03
通讯作者: Zhan-Ying Yang E-mail:zyyang@nwu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 12247103, 12275213, and 12247110).

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

Gen Zhang(张根)^1,2, Li-Zheng Lv(吕李政)^1,2, Peng Gao(高鹏)³, and Zhan-Ying Yang(杨战营)^1,2,4,†

1 School of Physics, Northwest University, Xi'an 710127, China;
2 Shaanxi Key Laboratory for Theoretical Physics Frontiers, Xi'an 710127, China;
3 Graduate School, China Academy of Engineering Physics, Beijing 100193, China;
4 Peng Huanwu Center for Fundamental Theory, Xi'an 710127, China

Received:2023-06-30 Revised:2023-08-12 Accepted:2023-08-22 Online:2023-10-16 Published:2023-11-03
Contact: Zhan-Ying Yang E-mail:zyyang@nwu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 12247103, 12275213, and 12247110).

摘要/Abstract

摘要： 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 N_i and interspecies scattering length a₁₂. Meanwhile, the above breathing structures can realize the process of quasi-transition with a reasonable N_i and a₁₂. 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.

关键词: dipolar Bose-Einstein condensates, soliton, soliton collision

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 N_i and interspecies scattering length a₁₂. Meanwhile, the above breathing structures can realize the process of quasi-transition with a reasonable N_i and a₁₂. 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.

Key words: dipolar Bose-Einstein condensates, soliton, soliton collision

中图分类号: (Multicomponent condensates; spinor condensates)

03.75.Mn

05.45.-a (Nonlinear dynamics and chaos) 34.50.Cx (Elastic; ultracold collisions)

Gen Zhang(张根), Li-Zheng Lv(吕李政), Peng Gao(高鹏), and Zhan-Ying Yang(杨战营). Special breathing structures induced by bright solitons collision in a binary dipolar Bose-Einstein condensates[J]. 中国物理B, 2023, 32(11): 110303-110303.

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

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

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