Dynamical properties of dipolar Fermi gases
文献类型：期刊论文
| 作者 | Sogo, T.; He, L.; Miyakawa, T.; Yi, S. ; Lu, H.; Pu, H.; Pu, H , Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA
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| 刊名 | NEW JOURNAL OF PHYSICS
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| 出版日期 | 2009 |
| 卷号 | 11期号:1页码:- |
| 关键词 | Sum-rules |
| ISSN号 | 1367-2630 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000266234500008 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5327]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Pu, H , Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA |
| 推荐引用方式 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):-. |
入库方式： OAI收割
来源：理论物理研究所
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