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Density distributions of ultracold fermionic gases under a nonuniform gradient magnetic field
Lv, Dong-Yan; Kong, Xiang-Mu; Kong, XM , Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China
2007
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号76期号:5页码:-
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.
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
关键词Atoms Condensation Molecules
学科领域Physics
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收录类别SCI
WOS记录号WOS:000251326400195
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5638
专题理论物理所1978-2010年知识产出
通讯作者Kong, XM , Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China
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Lv, Dong-Yan,Kong, Xiang-Mu,Kong, XM , Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China. Density distributions of ultracold fermionic gases under a nonuniform gradient magnetic field[J]. PHYSICAL REVIEW A,2007,76(5):-.
APA Lv, Dong-Yan,Kong, Xiang-Mu,&Kong, XM , Qufu Normal Univ, Dept Phys, Qufu 273165, Peoples R China.(2007).Density distributions of ultracold fermionic gases under a nonuniform gradient magnetic field.PHYSICAL REVIEW A,76(5),-.
MLA Lv, Dong-Yan,et al."Density distributions of ultracold fermionic gases under a nonuniform gradient magnetic field".PHYSICAL REVIEW A 76.5(2007):-.
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