SYMMETRIES OF THE LARGE-U HUBBARD-MODEL AT HALF FILLING
文献类型：期刊论文
| 作者 | CHAU, LL; HUANG, DW; YU, Y ; CHAU, LL , UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616, USA.
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| 刊名 | PHYSICAL REVIEW LETTERS
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| 出版日期 | 1992 |
| 卷号 | 68期号:16页码:2539-2542 |
| 关键词 | High-tc Superconductivity Mean-field-theory Valence Bond State Antiferromagnet Mechanism Limit |
| ISSN号 | 0031-9007 |
| 英文摘要 | Symmetries of the Hubbard model in the large-U limit are discussed. We show that the global SU(2) symmetry of the full even-lattice Hubbard model generated by Yang's eta-pairing operators becomes a local symmetry in the large-U limit and is applicable to even-odd mixed lattices. This extends the well-known SU(2) local symmetry of Anderson, for which we construct the generators. The associated local gauge theory of the extended symmetry can be similarly formulated and has interesting physical implications: new mean-field theories with parity-changed pairings. We point out the importance of searching for the parity-dependent Aharonov-Bohm-type of effects related to these local gauge symmetries. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12170]  |
| 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 | CHAU, LL , UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616, USA. |
| 推荐引用方式 GB/T 7714 | CHAU, LL,HUANG, DW,YU, Y,et al. SYMMETRIES OF THE LARGE-U HUBBARD-MODEL AT HALF FILLING[J]. PHYSICAL REVIEW LETTERS,1992,68(16):2539-2542. |
| APA | CHAU, LL,HUANG, DW,YU, Y,&CHAU, LL , UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616, USA..(1992).SYMMETRIES OF THE LARGE-U HUBBARD-MODEL AT HALF FILLING.PHYSICAL REVIEW LETTERS,68(16),2539-2542. |
| MLA | CHAU, LL,et al."SYMMETRIES OF THE LARGE-U HUBBARD-MODEL AT HALF FILLING".PHYSICAL REVIEW LETTERS 68.16(1992):2539-2542. |
入库方式： OAI收割
来源：理论物理研究所
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