arXiv:cond-mat/9905436·v1·Superconductivity
The SO(5) Theory as a Critical Dynamical Symmetry
Lian-Ao Wu (Jilin University)🇨🇳 · Mike Guidry🇺🇸 · Yang Sun (University of Tennessee)🇺🇸 · Cheng-Li Wu (Chung-Yuan Christian University)🇹🇼
Abstract
We use generalized coherent states to analyze the SO(5) theory of high-temperature superconductivity and antiferromagnetism. We demonstrate that the SO(5) symmetry can be embedded in a larger algebra that allows it to be interpreted as a critical dynamical symmetry interpolating between antiferromagnetic and superconducting phases. This dynamical interpretation suggests that SO(5) defines a phase with the character of a spin-glass for a significant range of doping.
Comments: 4 pages, 5 eps figures, submitted to Phys. Rev. Lett