Stability properties of vector solitons in two-component Bose–Einstein condensates with tunable interactions

doi:10.1088/1674-1056/20/2/020307

中国物理B ›› 2011, Vol. 20 ›› Issue (2): 20307-020307.doi: 10.1088/1674-1056/20/2/020307

Stability properties of vector solitons in two-component Bose–Einstein condensates with tunable interactions

刘循序¹, 张培², 和万全², 张晓斐³

(1)Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; (2)College of Science, Honghe University, Mengzi 661100, Yunnan Province, China; (3)College of Science, Honghe University, Mengzi 661100, Yunnan Province, China; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

收稿日期:2010-07-26 修回日期:2010-09-29 出版日期:2011-02-15 发布日期:2011-02-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874235, 10934010, and 60978019) and the National Key Basic Research Program of China (Grant Nos. 2009CB930701, 2010CB922904, and 2011CB921500).

Stability properties of vector solitons in two-component Bose–Einstein condensates with tunable interactions

Zhang Xiao-Fei(张晓斐)^a)b)^†, Zhang Pei(张培)^a), He Wan-Quan(和万全)^a),and Liu Xun-Xu(刘循序)^b)

^a College of Science, Honghe University, Mengzi 661100, Yunnan Province, China; ^b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Received:2010-07-26 Revised:2010-09-29 Online:2011-02-15 Published:2011-02-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10874235, 10934010, and 60978019) and the National Key Basic Research Program of China (Grant Nos. 2009CB930701, 2010CB922904, and 2011CB921500).

摘要/Abstract

摘要： By using a unified theory of the formation of various types of vector-solitons in two-component Bose--Einstein condensates with tunable interactions, we obtain a family of exact vector-soliton solutions for the coupled nonlinear Schrödinger equations. Moreover, the Bogoliubov equation shows that there exists stable dark soliton in specific situations. Our results open up new ways in considerable experimental interest for the quantum control of multi-component Bose--Einstein condensates.

关键词: Bose--Einstein condensates, vector soliton, Bogoliubov equation

Abstract: By using a unified theory of the formation of various types of vector-solitons in two-component Bose–Einstein condensates with tunable interactions, we obtain a family of exact vector-soliton solutions for the coupled nonlinear Schrödinger equations. Moreover, the Bogoliubov equation shows that there exists stable dark soliton in specific situations. Our results open up new ways in considerable experimental interest for the quantum control of multi-component Bose–Einstein condensates.

Key words: Bose–Einstein condensates, vector soliton, Bogoliubov equation

中图分类号: (Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)

03.75.Lm

03.75.Mn (Multicomponent condensates; spinor condensates) 03.65.Ge (Solutions of wave equations: bound states)

张晓斐, 张培, 和万全, 刘循序. Stability properties of vector solitons in two-component Bose–Einstein condensates with tunable interactions[J]. 中国物理B, 2011, 20(2): 20307-020307.

Zhang Xiao-Fei(张晓斐), Zhang Pei(张培), He Wan-Quan(和万全), and Liu Xun-Xu(刘循序) . Stability properties of vector solitons in two-component Bose–Einstein condensates with tunable interactions[J]. Chin. Phys. B, 2011, 20(2): 20307-020307.

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Stability properties of vector solitons in two-component Bose–Einstein condensates with tunable interactions

Stability properties of vector solitons in two-component Bose–Einstein condensates with tunable interactions

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