Strongly correlated hopping and many-body bound states
Strongly Correlated Electrons
2009-01-24 v2
Abstract
We study a system in which the quantum dynamics of electrons depend on the particle density in their neighborhood. For any on-site repulsive interaction, we show that the exact two-body and three-body ground states are bound states. We also discuss the finite density case in a mean-field framework and we show that the system can undergo an unusual transition from an effective attractive interaction to a repulsive one, when varying the electron density.
Keywords
Cite
@article{arxiv.cond-mat/0106571,
title = {Strongly correlated hopping and many-body bound states},
author = {J. Vidal and B. Doucot},
journal= {arXiv preprint arXiv:cond-mat/0106571},
year = {2009}
}
Comments
6 pages, 6 EPS figures, minor modifications and references added