D--dimensional half--filled Hubbard model. Zero temperature paramagnetic solution
Strongly Correlated Electrons
2018-06-15 v1
Abstract
In this paper we investigate effects of a lattice dimension on strongly correlated electronic systems at . The model for numerical calculations is formalized in terms of the integral equations which were obtained previously for the half -- filled paramagnetic Hubbard model. The assumption that all relevant functions of the system have a magnitude dependence of momentus vectors makes ultimately possible treating a lattice dimension as an external parameter. We here submit for consideration the number of doubly occupied lattice sites, the electronic density of states, and the momentum distribution in electronic occupation numbers at =1, =2, =3
Cite
@article{arxiv.1806.05364,
title = {D--dimensional half--filled Hubbard model. Zero temperature paramagnetic solution},
author = {N. I. Chashchin},
journal= {arXiv preprint arXiv:1806.05364},
year = {2018}
}
Comments
15, 4 figures