Santos, Eduardo M.M.; Theumann, Alba - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 12, pp. 2661-2667
We analyze the quantum version of an M-component spin-glass model that, in the limit M→∞, exhibits a positive entropy with the correct properties in the limit T→0. We generalize the model in the presence of a transverse field Γ by using a fermionic representation for the spin operators....