Manipulation of gray-ring dark solitons in a two-component Bose gas with tunable soft-core interactions

doi:10.1088/1674-1056/addcbf

中国物理B ›› 2025, Vol. 34 ›› Issue (10): 100306-100306.doi: 10.1088/1674-1056/addcbf

Manipulation of gray-ring dark solitons in a two-component Bose gas with tunable soft-core interactions

Qiu-Ling He(何秋玲)¹, Lin-Xue Wang(王林雪)¹, Rui Jin(金瑞)¹, Fang Wang(王芳)¹, Ya-Jun Wang(王雅君)², and Xiao-Fei Zhang(张晓斐)^1,†

1 School of Physics and Information Science, Shaanxi University of Science and Technology, Xi'an 710021, China;
2 Department of Basic Sciences, Air Force Engineering University, Xi'an 710051, China

收稿日期:2025-03-21 修回日期:2025-05-06 接受日期:2025-05-23 发布日期:2025-10-11
通讯作者: Xiao-Fei Zhang E-mail:xfzhang@sust.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 12175129, 12475004, 12175027, and 12005125), the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (Grant No. ZDBSLY7016), the Shaanxi Fundamental Science Research Project for Mathematics and Physics (Grant No. 22JSY034), the Key Research and Development Projects of Shaanxi Province, China (Grant No. 2024GX-YBXM-564), the Scientific Research Program Funded by Shaanxi Provincial Education Department (Grant No. 23JP020), and the Youth Innovation Team of Shaanxi Universities.

Manipulation of gray-ring dark solitons in a two-component Bose gas with tunable soft-core interactions

Qiu-Ling He(何秋玲)¹, Lin-Xue Wang(王林雪)¹, Rui Jin(金瑞)¹, Fang Wang(王芳)¹, Ya-Jun Wang(王雅君)², and Xiao-Fei Zhang(张晓斐)^1,†

1 School of Physics and Information Science, Shaanxi University of Science and Technology, Xi'an 710021, China;
2 Department of Basic Sciences, Air Force Engineering University, Xi'an 710051, China

Received:2025-03-21 Revised:2025-05-06 Accepted:2025-05-23 Published:2025-10-11
Contact: Xiao-Fei Zhang E-mail:xfzhang@sust.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 12175129, 12475004, 12175027, and 12005125), the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (Grant No. ZDBSLY7016), the Shaanxi Fundamental Science Research Project for Mathematics and Physics (Grant No. 22JSY034), the Key Research and Development Projects of Shaanxi Province, China (Grant No. 2024GX-YBXM-564), the Scientific Research Program Funded by Shaanxi Provincial Education Department (Grant No. 23JP020), and the Youth Innovation Team of Shaanxi Universities.

摘要/Abstract

摘要： We explore the manipulation of gray-ring dark solitons in a two-component Bose gas with tunable soft-core interactions through numerical simulations of the time-dependent Gross-Pitaevskii equation. Our results demonstrate that the lifetime of gray solitons with periodically modulated soft-core interactions significantly depends on their initial depth. Specifically, shallower initial depths lead to longer lifetimes when exceeding a critical depth threshold. Furthermore, the soliton depth also governs the number and dynamic of vortex pairs resulting from the collapse of the ring dark soliton. These depth-dependent topological transformations open new perspectives for quantum manipulation.

关键词: Bose-Einstein condensate, Rydberg interaction, ring dark solitons

Abstract: We explore the manipulation of gray-ring dark solitons in a two-component Bose gas with tunable soft-core interactions through numerical simulations of the time-dependent Gross-Pitaevskii equation. Our results demonstrate that the lifetime of gray solitons with periodically modulated soft-core interactions significantly depends on their initial depth. Specifically, shallower initial depths lead to longer lifetimes when exceeding a critical depth threshold. Furthermore, the soliton depth also governs the number and dynamic of vortex pairs resulting from the collapse of the ring dark soliton. These depth-dependent topological transformations open new perspectives for quantum manipulation.

Key words: Bose-Einstein condensate, Rydberg interaction, ring dark solitons

中图分类号: (Static properties of condensates; thermodynamical, statistical, and structural properties)

03.75.Hh

67.85.-d (Ultracold gases, trapped gases) 67.85.De (Dynamic properties of condensates; excitations, and superfluid flow) 75.10.-b (General theory and models of magnetic ordering)

Qiu-Ling He(何秋玲), Lin-Xue Wang(王林雪), Rui Jin(金瑞), Fang Wang(王芳), Ya-Jun Wang(王雅君), and Xiao-Fei Zhang(张晓斐). Manipulation of gray-ring dark solitons in a two-component Bose gas with tunable soft-core interactions[J]. 中国物理B, 2025, 34(10): 100306-100306.

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Manipulation of gray-ring dark solitons in a two-component Bose gas with tunable soft-core interactions

Manipulation of gray-ring dark solitons in a two-component Bose gas with tunable soft-core interactions

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