Elementary modes of excitation caused by the quadratic Zeeman term and the sensitivity of spin structures of small spin-2 condensates against the magnetic field

doi:10.1103/PhysRevA.84.063620

	Elementary modes of excitation caused by the quadratic Zeeman term and the sensitivity of spin structures of small spin-2 condensates against the magnetic field
	Bao, C. G.; He, Y. Z.1
刊名	PHYSICAL REVIEW A
	2011-12-16
卷号	84 期号:85 页码:8
ISSN号	1050-2947
DOI	10.1103/PhysRevA.84.063620
英文摘要	The response of spin-2 small condensates to an external magnetic field B is studied. The parameters of the interaction are considered as variable. The emphasis is placed on clarifying the modes of excitation caused by the quadratic Zeeman term. The theoretical method used is beyond the mean-field theory. A set of eigenstates with the U(5) superset of SO(5) superset of SO(3) symmetry is introduced to facilitate the analysis. To obtain a quantitative evaluation on the response, the fidelity susceptibility and the B-dependent average populations of spin components have been calculated. Mostly the particle number N = 30 is assumed. The effect with a larger or smaller N is also considered. It was found that the sensitivity of the response depends strongly both on the interaction and on the inherent symmetry.
资助项目	NSFC[10874249]
WOS关键词	QUADRUPOLE
WOS研究方向	Optics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000298379100007
资助机构	NSFC
公开日期	2012-03-09
内容类型	期刊论文
源URL	[http://210.77.73.110/handle/113462/12454]
专题	近代物理研究所_理论物理研究室
通讯作者	He, Y. Z.
作者单位	1.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 2.Sun Yat Sen Univ, Sch Phys & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Bao, C. G.,He, Y. Z.. Elementary modes of excitation caused by the quadratic Zeeman term and the sensitivity of spin structures of small spin-2 condensates against the magnetic field[J]. PHYSICAL REVIEW A,2011,84(85):8.
APA	Bao, C. G.,&He, Y. Z..(2011).Elementary modes of excitation caused by the quadratic Zeeman term and the sensitivity of spin structures of small spin-2 condensates against the magnetic field.PHYSICAL REVIEW A,84(85),8.
MLA	Bao, C. G.,et al."Elementary modes of excitation caused by the quadratic Zeeman term and the sensitivity of spin structures of small spin-2 condensates against the magnetic field".PHYSICAL REVIEW A 84.85(2011):8.