Exact realization of SO(5) symmetry in extended Hubbard models
arXiv:cond-mat/9707275 · doi:10.1103/PhysRevLett.80.3590
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.
4 pages, LaTeX; no figures; submitted, Phys. Rev. Lett
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Cited by in corpus (31)
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