作者: Freeman J. Dyson , Elliott H. Lieb , Barry Simon
DOI: 10.1007/978-3-662-10018-9_12
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摘要: We prove the existence of spontaneous magnetization at sufficiently low temperature, and hence a phase transition, in variety quantum spin systems three or more dimensions. The isotropic 1/2 x−y model Heisenberg antiferromagnet with 1, 3/2,...and nearest neighbor interactions on simple cubic lattice are included.