On confined fractional charges: a simple model
Strongly Correlated Electrons
2007-05-23 v1
Abstract
We address the question whether features known from quantum chromodynamics (QCD) can possibly also show up in solid-state physics. It is shown that spinless fermions of charge on a checkerboard lattice with nearest-neighbor repulsion provide for a simple model of confined fractional charges. After defining a proper vacuum the system supports excitations with charges attached to the ends of strings. There is a constant confining force acting between the fractional charges. It results from a reduction of vacuum fluctuations and a polarization of the vacuum in the vicinity of the connecting strings.
Keywords
Cite
@article{arxiv.cond-mat/0604666,
title = {On confined fractional charges: a simple model},
author = {F. Pollmann and P. Fulde},
journal= {arXiv preprint arXiv:cond-mat/0604666},
year = {2007}
}
Comments
5 pages, 3 figures