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Squared interaction matrix Sherrington-Kirkpatrick model for a spin glass
Dean, D.S.; Ritort Farran, Fèlix
Universitat de Barcelona
The mean-field theory of a spin glass with a specific form of nearest- and next-nearest-neighbor interactions is investigated. Depending on the sign of the interaction matrix chosen we find either the continuous replica symmetry breaking seen in the Sherrington-Kirkpartick model or a one-step solution similar to that found in structural glasses. Our results are confirmed by numerical simulations and the link between the type of spin-glass behavior and the density of eigenvalues of the interaction matrix is discussed.
04-05-2010
Vidres de spin
Propietats magnètiques
Spin glasses
Magnetic properties
(c) The American Physical Society, 2002
Artículo
The American Physical Society
         

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