Rate distortion theorem and the multicritical point of a spin glass

Physical Review. E
Tatsuto MurayamaPeter Davis

Abstract

A spin system can be thought of as an information coding system that transfers information of the interaction configuration into information of the equilibrium state of the spin variables. Hence it can be expected that the relations between the interaction configuration and equilibrium states are consistent with the known laws of information theory. We show that Shannon's rate distortion theorem can be used to obtain a universal constraint on neighboring spin correlations for a broad range of Ising spin systems with two-body spin interactions. Remarkably, this constraint gives a bound for the multicritical point in the phase diagram, when a mean-field behavior for the neighboring spin pairs can be expected in the paramagnetic phase.

References

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Apr 20, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Tatsuto Murayama
Aug 11, 2005·Physical Review Letters·Stefano CilibertiRiccardo Zecchina

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