Dilute Ferromagnet, Percolation, andSpin-Glass Phase Transitions from Grassmann Path Integrals
- 2 July 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 53 (1) , 9-12
- https://doi.org/10.1103/physrevlett.53.9
Abstract
A novel technique, based on Grassmann path integrals, is shown to provide a powerful new tool in the theory of phase transitions in two-dimensional Ising-spin models. Accurate phase boundaries as well as exact critical singularities are produced for two representative models of disorder: the dilute ferromagnet and the spin-glass.
Keywords
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