An SO(5) Symmetric Ladder
Superconductivity
2009-10-30 v1
Abstract
We construct an SO(5) symmetric electron model on a two-chain ladder with purely local interactions on a rung. The ground state phase diagram of this model is determined in the strong-coupling limit. The relationship between the spin-gap magnon mode of the spin-gap insulator and the resonance mode of the d-wave pairing phase is discussed. We also present the exact ground state for an SO(5) superspin model.
Cite
@article{arxiv.cond-mat/9711117,
title = {An SO(5) Symmetric Ladder},
author = {D. Scalapino and Shou-Cheng Zhang and W. Hanke},
journal= {arXiv preprint arXiv:cond-mat/9711117},
year = {2009}
}
Comments
28 pages including figures