Integrable one-dimensional N-component fermion model with correlated hopping and hard-core repulsion
文献类型：期刊论文
| 作者 | Yue, RH; Schlottmann, P |
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2002-12-30 |
| 卷号 | 647页码:539-564 |
| 关键词 | correlated hopping Bethe ansatz one-dimensional fermion lattice superconductivity |
| ISSN号 | 0550-3213 |
| 英文摘要 | The N-component Bariev model for correlated hopping and a hard-core repulsion is shown to be integrable in one dimension. The solution of the model is obtained within The framework of nested Bethe ansatze. The ground state integral equations for the densities of the rapidities are derived for repulsive and attractive correlations. In zero-field and for a repulsive interaction the spin excitations are gapped and only the charge sector has a Fermi surface. The properties are then those of a one-component Luttinger liquid. The spin-gaps are gradually closed with increasing magnetic field. For an attractive interaction potential charge bound states (generalized non-local Cooper pairs) are formed and the spin excitations are gapped in zero magnetic field. The ground state properties and the critical exponents of correlation functions are discussed for both, repulsive and attractive, potentials. The string hypothesis is invoked to derive the thermodynamic Bethe ansatz equations. Some special limits of the thermodynamic equations are analyzed, e.g., the weak and strong interaction cases, and the low and high temperature limits. (C) 2002 Published by Elsevier Science B.V. |
| WOS关键词 | DELTA-FUNCTION INTERACTION ; 3-PARTICLE INTERACTIONS ; HOLE SUPERCONDUCTIVITY ; 2-PARTICLE ; GAS ; EXCITATIONS ; SIZE |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000179786300006 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/38326]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Yue, RH |
| 作者单位 | 1.Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA 2.NW Univ Xian, Inst Modern Phys, Xian 710069, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yue, RH,Schlottmann, P. Integrable one-dimensional N-component fermion model with correlated hopping and hard-core repulsion[J]. NUCLEAR PHYSICS B,2002,647:539-564. |
| APA | Yue, RH,&Schlottmann, P.(2002).Integrable one-dimensional N-component fermion model with correlated hopping and hard-core repulsion.NUCLEAR PHYSICS B,647,539-564. |
| MLA | Yue, RH,et al."Integrable one-dimensional N-component fermion model with correlated hopping and hard-core repulsion".NUCLEAR PHYSICS B 647(2002):539-564. |
入库方式： OAI收割
来源：近代物理研究所
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