Antiferromagnetism of Repulsively Interacting Fermions in a Harmonic Trap
文献类型：期刊论文
| 作者 | Qi, JQ ; Wang, L ; Dai, X |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2010 |
| 卷号 | 27期号:8 |
| 关键词 | CORRELATED LATTICE FERMIONS GUTZWILLER WAVE-FUNCTION DIMENSIONS TRANSITION |
| ISSN号 | 0256-307X |
| 通讯作者 | Qi, JQ: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We propose a real-space Gutzwiller variational approach and apply it to a system of repulsively interacting ultracold fermions with spin-1/2 trapped in an optical lattice with a harmonic confinement. Using the real-space Gutzwiller variational approach, we find that in a system with balanced spin-mixtures on a square lattice, antiferromagnetism either appears in a checkerboard pattern or forms a ring, and the antiferromagnetic order is stable in the regions where the particle density is close to one, which is consistent with the recent results obtained by the real-space dynamical mean-field theory approach. We also investigate the imbalanced case and find that the antiferromagnetic order is suppressed there. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33892]  |
| 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 | Qi, JQ,Wang, L,Dai, X. Antiferromagnetism of Repulsively Interacting Fermions in a Harmonic Trap[J]. CHINESE PHYSICS LETTERS,2010,27(8). |
| APA | Qi, JQ,Wang, L,&Dai, X.(2010).Antiferromagnetism of Repulsively Interacting Fermions in a Harmonic Trap.CHINESE PHYSICS LETTERS,27(8). |
| MLA | Qi, JQ,et al."Antiferromagnetism of Repulsively Interacting Fermions in a Harmonic Trap".CHINESE PHYSICS LETTERS 27.8(2010). |
入库方式： OAI收割
来源：物理研究所
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