Superconductivity in the two-dimensional Hubbard model?
Strongly Correlated Electrons
2015-06-25 v1 Superconductivity
Abstract
A refined variational wave function for the two-dimensional repulsive Hubbard model is studied numerically, with the aim of approaching the difficult crossover regime of intermediate values of U. The issue of a superconducting ground state with d-wave symmetry is investigated for an average electron density n=0.8125 and for U=8t. Due to finite-size effects a clear-cut answer to this fundamental question has not yet been reached.
Cite
@article{arxiv.cond-mat/0612690,
title = {Superconductivity in the two-dimensional Hubbard model?},
author = {D. Baeriswyl and D. Eichenberger and B. Gut},
journal= {arXiv preprint arXiv:cond-mat/0612690},
year = {2015}
}
Comments
5 pages, 1 figure, Proc. 30th Int. Conf. of Theoretical Physics, Ustron, Poland, 2006, to be published in phys. stat. sol