High-frequency asymptotic behavior of self-energies in quantum impurity models
Strongly Correlated Electrons
2011-08-16 v1
Abstract
We present explicit expressions for the high-frequency asymptotic behavior of electron self-energy of general quantum impurity models, which may be useful for improving the convergence of dynamical mean-field calculations and for the analytic continuation of the electron self-energy. We also give results, expressed in more physical terms, for the two-orbital and three-orbital rotationally invariant Slater-Kanamori interactions, in order to facilitate calculations of transition metal oxides.
Keywords
Cite
@article{arxiv.1107.5536,
title = {High-frequency asymptotic behavior of self-energies in quantum impurity models},
author = {Xin Wang and Hung The Dang and Andrew J. Millis},
journal= {arXiv preprint arXiv:1107.5536},
year = {2011}
}
Comments
Brief report, 3 pages. For supplementary information please download and untar the source file (use the option 'other')