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Critical exponents of the degenerate Hubbard model
| Content Provider | Semantic Scholar |
|---|---|
| Author | Frahm, Holger |
| Copyright Year | 1992 |
| Abstract | We study the critical behaviour of the SU(N) generalization of the one-dimensional Hubbard model with arbitrary degeneracy N . Using the integrability of this model by Bethe Ansatz we are able to compute the spectrum of the low-lying excitations in a large but finite box for arbitrary values of the electron density and of the Coulomb interaction. This information is used to determine the asymptotic behaviour of correlation functions at zero temperature in the presence of external fields lifting the degeneracy. The critical exponents depend on the system parameters through a N × N dressed charge matrix implying the relevance of the interaction of chargeand spin-density waves. e-mail: frahm@kastor.itp.uni-hannover.de e-mail: as@thp.uni-koeln.de Work performed within the research program of the Sonderforschungsbereich 341 (Köln-Aachen-Jülich) |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/cond-mat/9207026v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Abnormal degeneration Arabic numeral 0 Bethe–Salpeter equation Degeneracy (graph theory) Email Generalization (Psychology) Hubbard model Lambda lifting Relevance Scanning Electron Microscopy Telling untruths newton |
| Content Type | Text |
| Resource Type | Article |
