Mott insulating phases and quantum phase transitions of interacting spin-3/2 fermionic cold atoms in optical lattices at half filling
文献类型：期刊论文
| 作者 | Tu, Hong-Hao; Zhang, Guang-Ming; Yu, Lu ; Zhang, GM , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2007 |
| 卷号 | 76期号:1页码:- |
| 关键词 | Large-n Limit Gauge Structure Superconductors Systems Model |
| ISSN号 | 1098-0121 |
| 英文摘要 | We study various Mott insulating phases of interacting spin-3/3 fermionic ultracold atoms in two-dimensional square optical lattices at half filling. Using a generalized one-band Hubbard model with hidden SO(5) symmetry, we identify two distinct symmetry breaking phases: the degenerate antiferromagnetic spin-dipole-spin-octupole ordering and spin-quadrupole ordering, depending on the sign of the spin-dependent interaction. These two competing orders exhibit very different symmetry properties, low energy excitations, and topological characterizations. Near the SU(4) symmetric point, a quantum critical state with a pi-flux phase may emerge due to strong quantum fluctuations, leading to spin algebraic correlations and gapless excitations. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000248487900095 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5702]  |
| 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 | Zhang, GM , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tu, Hong-Hao,Zhang, Guang-Ming,Yu, Lu,et al. Mott insulating phases and quantum phase transitions of interacting spin-3/2 fermionic cold atoms in optical lattices at half filling[J]. PHYSICAL REVIEW B,2007,76(1):-. |
| APA | Tu, Hong-Hao,Zhang, Guang-Ming,Yu, Lu,&Zhang, GM , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.(2007).Mott insulating phases and quantum phase transitions of interacting spin-3/2 fermionic cold atoms in optical lattices at half filling.PHYSICAL REVIEW B,76(1),-. |
| MLA | Tu, Hong-Hao,et al."Mott insulating phases and quantum phase transitions of interacting spin-3/2 fermionic cold atoms in optical lattices at half filling".PHYSICAL REVIEW B 76.1(2007):-. |
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来源：理论物理研究所
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