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Title: Nonperturbative solution of the Ising model on a random surface

Journal Article · · Physical Review Letters; (USA)
;  [1]
  1. Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544 (US)

The two-matrix-model representation of the Ising model on a random surface is solved exactly to all orders in the genus expansion. The partition function obeys a fourth-order nonlinear differential equation as a function of the string coupling constant. This equation differs from that derived for the {ital k}=3 multicritical one-matrix model, thus disproving that this model describes the Ising model. A similar equation is derived for the Yang-Lee edge singularity on a random surface, and is shown to agree with the {ital k}=3 multicritical one-matrix model.

OSTI ID:
7102890
Journal Information:
Physical Review Letters; (USA), Vol. 64:7; ISSN 0031-9007
Country of Publication:
United States
Language:
English

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