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Relationship among Exactly Soluble Models of Critical Phenomena. I: 2D Ising Model, Dimer Problem and the Generalized XY-Model

Suzuki, Masuo·1971·Progress of Theoretical Physics

Abstract

By relating a transfer matrix associated with a classical system to the Hamiltonian of its corresponding quantum mechanical system, it is proved that the two-dimensional Ising model in the absence of a magnetic field is equivalent to the ground state of the linear XY-model in the presence of a magnetic field, under appropriate relations among coupling parameters appearing in the two Hamiltonians. Simple relations are established for spin correlations in both systems. Consequently, the Ising system and the ground state of the XY-model are shown to exhibit similar singularities with respect to temperature and a magnetic field, respectively. It is also proved that the two-dimensional dimer problem is equivalent to the ground state of a generalized XY-model, which is solved exactly in general.

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Metadata

Authors
Suzuki, M.
Venue
Progress of Theoretical Physics
Published
1971-11
Volume
46
Issue
5
Pages
1337-1359
ISSN
0033-068X (ISSN-L)
OpenAlex
W2045966288
Cited by
277
References
0
FWCI
2.26
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Relationship among Exactly Soluble Models of Critical Phenomena. I: 2D Ising Model, Dimer Problem and the Generalized XY-Model. https://app.cochat.ai/papers/10.1143/ptp.46.1337
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Suzuki, M. (1971). Relationship among Exactly Soluble Models of Critical Phenomena. I: 2D Ising Model, Dimer Problem and the Generalized XY-Model. Progress of Theoretical Physics. https://doi.org/10.1143/ptp.46.1337

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