Violation of the Luttinger sum rule within the Hubbard model on a triangular lattice
Strongly Correlated Electrons
2009-11-13 v2 Statistical Mechanics
Abstract
The frequency-moment expansion method is developed to analyze the validity of the Luttinger sum rule within the Mott-Hubbard insulator, as represented by the generalized Hubbard model at half filling and large . For the particular case of the Hubbard model with nearest-neighbor hopping on a triangular lattice lacking the particle-hole symmetry results reveal substantial violation of the sum rule.
Keywords
Cite
@article{arxiv.0709.0263,
title = {Violation of the Luttinger sum rule within the Hubbard model on a triangular lattice},
author = {J. Kokalj and P. Prelovsek},
journal= {arXiv preprint arXiv:0709.0263},
year = {2009}
}
Comments
4 pages, 2 figures