Dynamical susceptibilities in strong coupling approach
强关联电子
2015-06-25 v2
摘要
A general scheme to calculate dynamical susceptibilities of strongly correlated electron systems within the dynamical mean field theory is developed. Approach is based on an expansion over electron hopping around the atomic limit (within the diagrammatic technique for site operators: projection and Hubbard ones) in infinite dimensions. As an example, the Falicov-Kimball and simplified pseudospin-electron models are considered for which an analytical expressions for dynamical susceptibilities are obtained.
引用
@article{arxiv.cond-mat/9912300,
title = {Dynamical susceptibilities in strong coupling approach},
author = {A. M. Shvaika},
journal= {arXiv preprint arXiv:cond-mat/9912300},
year = {2015}
}
备注
2 pages, 3 eps figures, final version published in proceedings of M2S-HTSC-VI (Houston)