Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local-density approximation
文献类型：期刊论文
| 作者 | Dong, H.; Hu, Hui; Liu, Xia-Ji; Drummond, Peter D.; Dong, H , Swinburne Univ Technol, ARC Ctr Excellence Quantum Atom Opt, Ctr Atom Opt & Ultrafast Spect, Melbourne, Vic 3122, Australia |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2010 |
| 卷号 | 82期号:1页码:- |
| ISSN号 | 1050-2947 |
| 英文摘要 | We theoretically investigate the itinerant ferromagnetic transition of a spherically trapped ultracold Fermi gas with spin imbalance under strongly repulsive interatomic interactions. Our study is based on a self-consistent solution of the Hartree-Fock mean-field equations beyond the widely used local-density approximation. We demonstrate that, while the local-density approximation holds in the paramagnetic phase, after the ferromagnetic transition it leads to a quantitative discrepancy in various thermodynamic quantities even with large atom numbers. We determine the position of the phase transition by monitoring the shape change of the free-energy curve with increasing the polarization at various interaction strengths. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000280173500003 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5074]  |
| 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 | Dong, H , Swinburne Univ Technol, ARC Ctr Excellence Quantum Atom Opt, Ctr Atom Opt & Ultrafast Spect, Melbourne, Vic 3122, Australia |
| 推荐引用方式 GB/T 7714 | Dong, H.,Hu, Hui,Liu, Xia-Ji,et al. Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local-density approximation[J]. PHYSICAL REVIEW A,2010,82(1):-. |
| APA | Dong, H.,Hu, Hui,Liu, Xia-Ji,Drummond, Peter D.,&Dong, H , Swinburne Univ Technol, ARC Ctr Excellence Quantum Atom Opt, Ctr Atom Opt & Ultrafast Spect, Melbourne, Vic 3122, Australia.(2010).Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local-density approximation.PHYSICAL REVIEW A,82(1),-. |
| MLA | Dong, H.,et al."Mean-field study of itinerant ferromagnetism in trapped ultracold Fermi gases: Beyond the local-density approximation".PHYSICAL REVIEW A 82.1(2010):-. |
入库方式： OAI收割
来源：理论物理研究所
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