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

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.

Keywords: Bose-Einstein condensate spin-orbit coupling quantum phase transition

Received: 16 December 2013
Revised: 11 January 2014
Accepted manuscript online:

PACS:	03.75.Mn	(Multicomponent condensates; spinor condensates)
	05.30.Jp	(Boson systems)
	67.85.Fg	(Multicomponent condensates; spinor condensates)

Fund: 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).

Corresponding Authors: Zhang Xiao-Fei
E-mail: xfzhang@ntsc.ac.cn

About author: 03.75.Mn; 05.30.Jp; 67.85.Fg

Cite this article:

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 2014 Chin. Phys. B 23 070308

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

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