| Universal power-law behavior of local electron correlation functions in the Falicov-Kimball lattice model | |
| Liu, YL | |
| 2010-05-06 ; 2010-05-06 | |
| 关键词 | MONTE-CARLO CALCULATIONS BOSON-FERMION SYSTEMS MEAN-FIELD THEORY LARGE DIMENSIONS ORTHOGONALITY CATASTROPHE INFINITE DIMENSIONS MAGNETIC-PROPERTIES KONDO PROBLEM METALS THERMODYNAMICS Physics, Condensed Matter |
| 中文摘要 | By studying the Falicov-Kimball lattice model, we demonstrate that the correlation functions of local electrons can be written directly in the form of the partition function of conduction electrons with a time dependent external potential. These general expressions of the correlation functions are equivalent to the exact ones obtained by the dynamical mean field theory in infinite dimension limit. Moreover, we also prove that the asymptotic power-law behavior of the local electron correlation functions is universal in any dimensions, as long as the conduction electron excitation spectrum is gapless, regardless whether they are Landau Fermi liquid or not. This conclusion is also valid for other quantum many-particle systems, if the coupling between the conduction and local electrons is on-site or short-range Coulomb interaction. |
| 语种 | 英语 ; 英语 |
| 出版者 | AMERICAN PHYSICAL SOC ; COLLEGE PK ; ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/15265]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Liu, YL. Universal power-law behavior of local electron correlation functions in the Falicov-Kimball lattice model[J],2010, 2010. |
| APA | Liu, YL.(2010).Universal power-law behavior of local electron correlation functions in the Falicov-Kimball lattice model.. |
| MLA | Liu, YL."Universal power-law behavior of local electron correlation functions in the Falicov-Kimball lattice model".(2010). |
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