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题名: Density distributions of ultracold fermionic gases under a nonuniform gradient magnetic field
作者: Lv, Dong-Yan ;  Kong, Xiang-Mu
刊名: PHYSICAL REVIEW A
出版日期: 2007
卷号: 76, 期号:5, 页码:-
关键词: ATOMS ;  CONDENSATION ;  MOLECULES
学科分类: Physics
通讯作者: Kong, XM , Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China
部门归属: Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Using the local-density approximation and mean-field method, ultracold fermionic gases are studied under a nonuniform gradient magnetic field B=(B(0)+alpha z+lambda z(2))e(x), where B(0) is the Feshbach resonant magnetic field, alpha and lambda are external parameters, z is the spatial coordinate, and e(x) is a unit vector pointing in the x direction. In the case of thermal and chemical equilibrium, coexistence of the regimes of molecular Bose-Einstein condensation (BEC), Bardeen-Cooper-Schrieffer superfluid, and the unitarity limit is obtained. The relations between the particle density distribution in each state of matter and the magnetic field parameters are discussed. In particular, the effect of magnetic field on the molecular density distribution in the BEC state is analyzed. As a result, it is found that the range of BEC can be controlled by changing the parameter values of the magnetic field.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000251326400195
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5638
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Lv, Dong-Yan,Kong, Xiang-Mu. Density distributions of ultracold fermionic gases under a nonuniform gradient magnetic field[J]. PHYSICAL REVIEW A,2007,76(5):-.
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