Exact realization of SO(5) symmetry in extended Hubbard models

被引：44

作者：

Henley, CL ^{[1
]}

机构：

[1] Cornell Univ, Dept Phys, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.80.3590

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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页码：3590 / 3593

页数：4

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