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Sogo, T.; He, L.; Miyakawa, T.; Yi, S.; Lu, H.; Pu, H.; Pu, H , Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA
Dynamical properties of dipolar Fermi gases
发表期刊NEW JOURNAL OF PHYSICS
关键词Sum-rules
摘要In this paper, we investigate the dynamical properties of a one-component Fermi gas with dipole-dipole interaction between particles. Using a variational function based on the Thomas-Fermi density distribution in phase space representation, the total energy is described as a function of deformation parameters in both real and momentum spaces. Various thermodynamic quantities of a uniform dipolar Fermi gas are derived, and then instability of this system is discussed. For a trapped dipolar Fermi gas, the collective oscillation frequencies are derived with the energy-weighted sum rule method. The frequencies for the monopole, quadrupole, radial and axial modes are calculated, and softening against collapse is shown as the dipolar strength approaches the critical value. Finally, we investigate the expansion dynamics of the Fermi gas and show how the dipolar interaction manifests itself in the shape of an expanded cloud.
2009
ISSN1367-2630
卷号11期号:1页码:-
学科领域Physics
收录类别SCI
项目资助者DFG[RO905/29-1]; NSFC[10674141]; National 973 program of China[2006CB921205]; ; DFG[RO905/29-1]; NSFC[10674141]; National 973 program of China[2006CB921205]; ; DFG[RO905/29-1]; NSFC[10674141]; National 973 program of China[2006CB921205]; ; DFG[RO905/29-1]; NSFC[10674141]; National 973 program of China[2006CB921205];
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被引频次:54[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5327
专题理论物理所科研产出_SCI论文
通讯作者Pu, H , Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA
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GB/T 7714
Sogo, T.,He, L.,Miyakawa, T.,et al. Dynamical properties of dipolar Fermi gases[J]. NEW JOURNAL OF PHYSICS,2009,11(1):-.
APA Sogo, T..,He, L..,Miyakawa, T..,Yi, S..,Lu, H..,...&Pu, H , Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.(2009).Dynamical properties of dipolar Fermi gases.NEW JOURNAL OF PHYSICS,11(1),-.
MLA Sogo, T.,et al."Dynamical properties of dipolar Fermi gases".NEW JOURNAL OF PHYSICS 11.1(2009):-.
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