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题名: Coherent zero-field magnetization resonance in a dipolar spin-1 Bose-Einstein condensate
作者: Zhang, WX;  Yi, S;  Chapman, MS;  You, JQ
刊名: PHYSICAL REVIEW A
出版日期: 2015
卷号: 92, 期号:2, 页码:23615
学科分类: Optics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevA.92.023615
通讯作者: Zhang, WX (reprint author), Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China.
文章类型: Article
英文摘要: With current magnetic-field shielding and high-precision detection in dipolar spinor Bose-Einstein condensates, it is possible to experimentally detect the low-or zero-field nonsecular dipolar dynamics. Here we analytically investigate the zero-field nonsecular magnetic dipolar interaction effect, with an emphasis on magnetization dynamics in a spin-1 Bose-Einstein condensate under the single spatial mode approximation within the mean-field theory. Due to the biaxial nature of the dipolar interaction, a novel resonance occurs in the condensate magnetization oscillation, in contrast to the previous assumption of a conserved magnetization in strong magnetic fields. Furthermore, we propose a dynamical-decoupling detection method for such a resonance, which cancels the stray magnetic fields in experiment but restores the magnetization dynamics. Our results shed light on the dipolar systems and may find potential applications beyond cold atoms.
类目[WOS]: Optics ;  Physics, Atomic, Molecular & Chemical
关键词[WOS]: DYNAMICS ;  COUPLINGS ;  PROGRESS ;  GASES
收录类别: SCI
项目资助者: National Basic Research Program of China [2013CB922003, 2014CB921401] ;  National Natural Science Foundation of China [11275139, 11434011, 11121403, 91421102] ;  National Science Foundation (U.S.) [1208828] ;  NSAF [U1330201] ;  Fundamental Research Funds for the Central Universities
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20895
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Zhang, WX,Yi, S,Chapman, MS,et al. Coherent zero-field magnetization resonance in a dipolar spin-1 Bose-Einstein condensate[J]. PHYSICAL REVIEW A,2015,92(2):23615.
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