Hubbard model vs. Kondo model: Strong coupling limit
Strongly Correlated Electrons
2020-10-26 v1
Abstract
The Hubbard model and the lattice Kondo model are shown to become identical in the strong-coupling limit. A departure from the strong-coupling regime produces distinct theories, however: the relevant perturbation terms give rise to either short-range spin exchange model) or short-range charge exchange ( model), respectively.
Cite
@article{arxiv.2010.12255,
title = {Hubbard model vs. Kondo model: Strong coupling limit},
author = {Ilya Ivantsov and Alvaro Ferraz and Evgenii Kochetov},
journal= {arXiv preprint arXiv:2010.12255},
year = {2020}
}