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An SU(4) Approach of High-Temperature Superconductivity and Antiferromagnetism

Mike Guidry·Lian-Ao Wu·Yang Sun·Cheng-Li Wu
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Abstract

We present an SU(4) model of high-$T_c$ superconductivity. One dynamical symmetry of this model corresponds to the previously proposed SO(5) model for unification of superconductivity and antiferromagnetism, but there are two additional dynamical symmetries: SO(4), associated with antiferromagnetic order and SU(2), associated with a D-wave pairing condensate. These provide a 3-phase microscopic model of high-$T_c$ superconductivity and permit a clear understanding of the role played by the SO(5) symmetry.

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Mike Guidry, Lian-Ao Wu, Yang Sun, Cheng-Li Wu. 1999-08-11. An SU(4) Approach of High-Temperature Superconductivity and Antiferromagnetism. https://arxiv.org/abs/cond-mat/9903150

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