Exact realization of SO(5) symmetry in extended Hubbard models
Strongly Correlated Electrons
2009-10-30 v1
Abstract
Zhang recently conjectured an approximate SO(5) symmetry relating antiferromagnetic and superconducting states in high-T_c cuprates. Here, an exact SO(5) symmetry is implemented in a generalized Hubbard model (with long-range interactions) on a lattice. The possible relation to a more realistic extended Hubbard Hamiltonian is discussed.
Keywords
Cite
@article{arxiv.cond-mat/9707275,
title = {Exact realization of SO(5) symmetry in extended Hubbard models},
author = {C. L. Henley},
journal= {arXiv preprint arXiv:cond-mat/9707275},
year = {2009}
}
Comments
4 pages, LaTeX; no figures; submitted, Phys. Rev. Lett