New superconducting states in the Hubbard model
Condensed Matter
2009-11-07 v1
Abstract
By acting on the excited states at half-filling in the positive- Hubbard model with the -pairing operators, we found some new superconducting states in the Hubbard model away from half-filling. Such eigenstates are different from the zero-pair and one-pair states introduced by Yang. It is shown that the one-pair states are not the ground-states and possess ODLRO.
Cite
@article{arxiv.cond-mat/0103559,
title = {New superconducting states in the Hubbard model},
author = {Sze-Shiang Feng and Bin Wang and Elcio Abdalla},
journal= {arXiv preprint arXiv:cond-mat/0103559},
year = {2009}
}
Comments
4 pages, revtex, no figures