Spin-charge separation in strongly interacting finite ladder rings
Strongly Correlated Electrons
2009-11-13 v1
Abstract
We study the conductance through Aharonov-Bohm finite ladder rings with strongly interacting electrons, modelled by the prototypical t-J model. For a wide range of parameters we observe characteristic dips in the conductance as a function of magnetic flux, predicted so far only in chains which are a signature of spin and charge separation. These results open the possibility of observing this peculiar many-body phenomenon in anisotropic ladder systems and in real nanoscopic devices.
Cite
@article{arxiv.0811.2231,
title = {Spin-charge separation in strongly interacting finite ladder rings},
author = {Julian Rincon and K. Hallberg and A. A. Aligia},
journal= {arXiv preprint arXiv:0811.2231},
year = {2009}
}
Comments
4 pages, 6 figures