Itinerant ferromagnetism in a Fermi gas with contact interaction: Magnetic properties in a dilute Hubbard model
文献类型：期刊论文
| 作者 | Chang, CC ; Zhang, SW ; Ceperley, DM |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2010 |
| 卷号 | 82期号:6 |
| 关键词 | GROUND-STATE BAND ENERGY NARROW |
| ISSN号 | 1050-2947 |
| 通讯作者 | Chang, CC: Coll William & Mary, Dept Phys, Williamsburg, VA 23187 USA. |
| 中文摘要 | Ground-state properties of the repulsive Hubbard model on a cubic lattice are investigated by means of the auxiliary-field quantum Monte Carlo method. We focus on low-density systems with varying on-site interaction U/t, as a model relevant to recent experiments on itinerant ferromagnetism in a dilute Fermi gas with contact interaction. Twist-average boundary conditions are used to eliminate open-shell effects and large lattice sizes are studied to reduce finite-size effects. The sign problem is controlled by a generalized constrained path approximation. We find no ferromagnetic phase transition in this model. The ground-state correlations are consistent with those of a paramagnetic Fermi liquid. |
| 收录类别 | SCI |
| 资助信息 | Army Research Office [56693-PH]; National Science Foundation [DMR-1006217]; Optical Lattice Emulator program |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/40416]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chang, CC,Zhang, SW,Ceperley, DM. Itinerant ferromagnetism in a Fermi gas with contact interaction: Magnetic properties in a dilute Hubbard model[J]. PHYSICAL REVIEW A,2010,82(6). |
| APA | Chang, CC,Zhang, SW,&Ceperley, DM.(2010).Itinerant ferromagnetism in a Fermi gas with contact interaction: Magnetic properties in a dilute Hubbard model.PHYSICAL REVIEW A,82(6). |
| MLA | Chang, CC,et al."Itinerant ferromagnetism in a Fermi gas with contact interaction: Magnetic properties in a dilute Hubbard model".PHYSICAL REVIEW A 82.6(2010). |
入库方式： OAI收割
来源：物理研究所
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