Equivalence of the Ashkin-Teller and the four-state Potts-glass models of neural networks.
We show that for a particular choice of the coupling parameters the Ashkin-Teller spin-glass neural network model with the Hebb learning rule and one condensed pattern yields the same thermodynamic properties as the four-state anisotropic Potts-glass neural network model. This equivalence is not seen at the level of the Hamiltonians.
Bollé
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Instituut voor Theoretische Fysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium. desire.bolle@fys.kuleuven.ac.be
Kozłowski
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