Transport Properties of One-Dimensional Hubbard Models
Strongly Correlated Electrons
2007-05-23 v3 Superconductivity
Abstract
We present results for the zero and finite temperature Drude weight D(T) and for the Meissner fraction of the attractive and the repulsive Hubbard model, as well as for the model with next nearest neighbor repulsion. They are based on Quantum Monte Carlo studies and on the Bethe ansatz. We show that the Drude weight is well defined as an extrapolation on the imaginary frequency axis, even for finite temperature. The temperature, filling, and system size dependence of D is obtained. We find counterexamples to a conjectured connection of dissipationless transport and integrability of lattice models.
Keywords
Cite
@article{arxiv.cond-mat/9804148,
title = {Transport Properties of One-Dimensional Hubbard Models},
author = {S. Kirchner and H. G. Evertz and W. Hanke},
journal= {arXiv preprint arXiv:cond-mat/9804148},
year = {2007}
}
Comments
10 pages, 14 figures. Published version