Ground state of rotating ultracold quantum gases with anisotropic spin–orbit coupling and concentrically coupled annular potential

doi:10.1088/1674-1056/23/7/070308

›› 2014, Vol. 23 ›› Issue (7): 70308-070308.doi: 10.1088/1674-1056/23/7/070308

Ground state of rotating ultracold quantum gases with anisotropic spin–orbit coupling and concentrically coupled annular potential

王鑫^{a b}, 谭仁兵^c, 杜志静^a, 赵文宇^{a b}, 张晓斐^a, 张首刚^a

a Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China;
b University of Chinese Academy of Sciences, Beijing 100049, China;
c Department of Physics, School of Mathematics and Physics, Chongqing University of Science and Technology, Chongqing 401331, China

收稿日期:2013-12-16 修回日期:2014-01-11 出版日期:2014-07-15 发布日期:2014-07-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11104064, 11303030, and 11174282), the National Science Fund for Distinguished Young Scholars of China (Grant No. 61025023), the National Major Fund of Scientific Equipment and Instrument Development, China (Grant No. 61127901), the Key Project Fund of the Chinese Academy of Sciences for the "Western Light" Talent Cultivation Plan, and the Science and Technology Project of Shaanxi Province, China (Grant No. 2013KJXX-03).

Ground state of rotating ultracold quantum gases with anisotropic spin–orbit coupling and concentrically coupled annular potential

Wang Xin (王鑫)^{a b}, Tan Ren-Bing (谭仁兵)^c, Du Zhi-Jing (杜志静)^a, Zhao Wen-Yu (赵文宇)^{a b}, Zhang Xiao-Fei (张晓斐)^a, Zhang Shou-Gang (张首刚)^a

a Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi'an 710600, China;
b University of Chinese Academy of Sciences, Beijing 100049, China;
c Department of Physics, School of Mathematics and Physics, Chongqing University of Science and Technology, Chongqing 401331, China

Received:2013-12-16 Revised:2014-01-11 Online:2014-07-15 Published:2014-07-15
Contact: Zhang Xiao-Fei E-mail:xfzhang@ntsc.ac.cn
About author:03.75.Mn; 05.30.Jp; 67.85.Fg
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11104064, 11303030, and 11174282), the National Science Fund for Distinguished Young Scholars of China (Grant No. 61025023), the National Major Fund of Scientific Equipment and Instrument Development, China (Grant No. 61127901), the Key Project Fund of the Chinese Academy of Sciences for the "Western Light" Talent Cultivation Plan, and the Science and Technology Project of Shaanxi Province, China (Grant No. 2013KJXX-03).

摘要/Abstract

摘要： Motivated by recent experimental realization of synthetic spin-orbit coupling in neutral quantum gases, we consider the quasi-two-dimensional rotating two-component Bose-Einstein condensates with anisotropic Rashba spin-orbit coupling subject to concentrically coupled annular potential. For experimentally feasible parameters, the rotating condensate exhibits a variety of rich ground state structures by varying the strengths of the spin-orbit coupling and rotational frequency. Moreover, the phase transitions between different ground state phases induced by the anisotropic spin-orbit coupling are obviously different from the isotropic one.

关键词: Bose-Einstein condensate, spin-orbit coupling, quantum phase transition

Abstract: Motivated by recent experimental realization of synthetic spin-orbit coupling in neutral quantum gases, we consider the quasi-two-dimensional rotating two-component Bose-Einstein condensates with anisotropic Rashba spin-orbit coupling subject to concentrically coupled annular potential. For experimentally feasible parameters, the rotating condensate exhibits a variety of rich ground state structures by varying the strengths of the spin-orbit coupling and rotational frequency. Moreover, the phase transitions between different ground state phases induced by the anisotropic spin-orbit coupling are obviously different from the isotropic one.

Key words: Bose-Einstein condensate, spin-orbit coupling, quantum phase transition

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

03.75.Mn

05.30.Jp (Boson systems) 67.85.Fg (Multicomponent condensates; spinor condensates)

王鑫, 谭仁兵, 杜志静, 赵文宇, 张晓斐, 张首刚. Ground state of rotating ultracold quantum gases with anisotropic spin–orbit coupling and concentrically coupled annular potential[J]. , 2014, 23(7): 70308-070308.

Wang Xin (王鑫), Tan Ren-Bing (谭仁兵), Du Zhi-Jing (杜志静), Zhao Wen-Yu (赵文宇), Zhang Xiao-Fei (张晓斐), Zhang Shou-Gang (张首刚). Ground state of rotating ultracold quantum gases with anisotropic spin–orbit coupling and concentrically coupled annular potential[J]. Chin. Phys. B, 2014, 23(7): 70308-070308.

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Ground state of rotating ultracold quantum gases with anisotropic spin–orbit coupling and concentrically coupled annular potential

Ground state of rotating ultracold quantum gases with anisotropic spin–orbit coupling and concentrically coupled annular potential

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