Phase diagram and collective modes in Rashba spin–orbit coupled BEC: Effect of in-plane magnetic field

doi:10.1088/1674-1056/24/7/076701

Abstract

We studied the system of pure Rashba spin–orbit coupled Bose gas with an in-plane magnetic field. Based on the mean field theory, we obtained the zero temperature phase diagram of the system which exhibits three phases, plane wave (PW) phase, striped wave (SW) phase, and zero momentum (ZM) phase. It was shown that with a growing in-plane field, both SW and ZM phases will eventually turn into the PW phase. Furthermore, we adopted the Bogoliubov theory to study the excitation spectrum as well as the sound speed.

Keywords: Rashba spin-orbit coupling excitation spectrum in-plane magnetic field

Received: 08 March 2015
Revised: 14 April 2015
Accepted manuscript online:

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

Fund:

Project supported by the National Natural Science Foundation of China (Grant No. 10774088).

Corresponding Authors: Zou Xu-Bo
E-mail: xbz@ustc.edu.cn

Cite this article:

Dong Dong (董冬), Zou Xu-Bo (邹旭波), Guo Guang-Can (郭光灿) Phase diagram and collective modes in Rashba spin–orbit coupled BEC: Effect of in-plane magnetic field 2015 Chin. Phys. B 24 076701

[1]	Lin Y J, Jimenez-Garcia K and Spielman I B 2011 Nature 471 83
[2]	Dalibard J, Gerbier F, Juzeliunas G and Ohberg P 2011 Rev. Mod. Phys. 83 1523
[3]	Goldman N, Juzeliunas G, Ohberg P and Spielman I B 2014 Rep. Prog. Phys. 77 126401
[4]	Zhou X F, Li Y, Cai Z and Wu C J 2013 J. Phys. B: At. Mol. Opt. Phys. 46 134001
[5]	Zhang S and Ho T L 2011 Phys. Rev. Lett. 107 150403
[6]	Li Y, Martone G I and Stringari S 2014 arXiv: 1410.5526
[7]	Galitski V and Spielman I B 2013 Nature 494 49
[8]	Wang X, Tan R B, Du Z J, Zhao W Y, Zhang X F and Zhang S G 2014 Chin. Phys. B 23 070308
[9]	Xie W F, He Y Z and Bao C G 2015 Chin. Phys. B 24 060305
[10]	Wang C, Gao C, Jian C M and Zhai H 2010 Phys. Rev. Lett. 105 160403
[11]	Wu C J, Mondragon-Shem I and Zhou X F 2011 Chin. Phys. Lett. 28 097102
[12]	Zhu Q Z, Zhang C W and Wu B 2012 Euro. Phys. Lett. 100 50003
[13]	Radic J, Ciolo A D, Sun K and Galitski V 2012 Phys. Rev. Lett. 109 085303
[14]	Cai Z, Zhou X F and Wu C J 2012 Phys. Rev. A 85 061605
[15]	Dalibard J, Gerbier F, Juzeliunas G and Ohberg P 2011 Rev. Mod. Phys. 83 1523
[16]	Xu Z F and You L 2012 Phys. Rev. A 85 043605
[17]	Anderson B M, Spielman I B and Juzeliunas G 2013 Phys. Rev. Lett. 111 125301
[18]	Yu Z Q 2013 Phys. Rev. A 87 051606
[19]	Sinha S, Nath R and Santos L 2011 Phys. Rev. Lett. 107 270401
[20]	Xu X Q and Han J H 2012 Phys. Rev. Lett. 108 185301

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Phase diagram and collective modes in Rashba spin–orbit coupled BEC: Effect of in-plane magnetic field

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