Exact results of strongly correlated systems at finite temperature

Authors
Feng, SS
Citation
Ss. Feng, Exact results of strongly correlated systems at finite temperature, PHYS LETT A, 256(2-3), 1999, pp. 230-234
Citations number
25
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
256
Issue
2-3
Year of publication
1999
Pages
230 - 234
Database
ISI
SICI code
0375-9601(19990531)256:2-3<230:EROSCS>2.0.ZU;2-H
Abstract
Some rigorous conclusions of the Hubbard model, Kondo lattice model and per iodic Anderson model at finite temperature are acquired employing the fluct uation-dissipation theorem and particle-hole transform. The main conclusion states that for the three models, the expectation value of (S) over tilde( 2) - (S) over tilde(z)(2) will be of order N-A at any temperature. (C) 1999 Published by Elsevier Science B.V. All rights reserved.