Persistent current of two-chain Hubbard model with impurities
Strongly Correlated Electrons
2009-10-31 v1
Abstract
The interplay between impurities and interactions is studied in the gapless phase of two-chain Hubbard model in order to see how the screening of impurity potentials due to repulsive interactions in single-chain model will be changed by increasing the number of channels. Renormalization group calculations show that charge stiffness, and hence persistent current, of the two-chain model are less enhanced by interactions than single chain case.
Keywords
Cite
@article{arxiv.cond-mat/9804265,
title = {Persistent current of two-chain Hubbard model with impurities},
author = {Hiroyuki Mori},
journal= {arXiv preprint arXiv:cond-mat/9804265},
year = {2009}
}
Comments
4 Pages, RevTeX, No figures, Submitted to PRB