No enhancement of the localization length for two interacting particles in a random potential
Disordered Systems and Neural Networks
2008-02-03 v1
Abstract
We study two interacting particles in a random potential chain by means of the transfer matrix method. The dependence of the two-particle localization length on disorder and interaction strength is investigated. Our results demonstrate that the recently proposed enhancement of as compared to the results for single particles is entirely due to the finite size of the systems considered. This is shown for a Hubbard-like onsite interaction and also a long-range interaction.
Keywords
Cite
@article{arxiv.cond-mat/9612034,
title = {No enhancement of the localization length for two interacting particles in a random potential},
author = {Rudolf A. R"omer and Michael Schreiber},
journal= {arXiv preprint arXiv:cond-mat/9612034},
year = {2008}
}
Comments
4 RevTeX 3.0 pages with 3 EPS figures included via psfig, to appear in Phys. Rev. Lett