11 citations · 20 across the 15 of their papers we have counts for
4 papers · 1 filter
Ensemble dependence of the critical behavior of a system with long-range interaction and quenched randomness
Nir Schreiber, Reuven Cohen, Simi Haber
We propose a hybrid model governed by the Blume-Emery-Griffiths (BEG) Hamiltonian with a mean-field-like interaction, where the spins are randomly quenched such that some of them a…
Changeover phenomenon in randomly colored Potts models
Nir Schreiber, Reuven Cohen, Gideon Amir +1
A hybrid Potts model where a random concentration of the spins assume states and a random concentration of the spins assume states is introduced. It is know…
Unusual changeover in the transition nature of local-interaction Potts models
Nir Schreiber, Reuven Cohen, Simi Haber +2
A combinatorial approach is used to study the critical behavior of a -state Potts model with a round-the-face interaction. Using this approach it is shown that the model exhibit…
Ferromagnetic Potts models with multisite interaction
Nir Schreiber, Reuven Cohen, Simi Haber
We study the states Potts model with four site interaction on the square lattice. Based on the asymptotic behaviour of lattice animals, it is argued that when the sys…