Dynamics in the Sherrington-Kirkpatrick Ising spin glass at and above T-g

Article

关键词: MEAN-FIELD-THEORY;    RANDOM-WALKS;    MODEL;    RELAXATION;    PHASE;    TRANSITION;    DIFFUSION;    HYPERCUBE;    NETWORK;   

DOI  :  10.1103/PhysRevB.84.054442

来源: SCIE

【 摘 要 】

A detailed numerical study is made of relaxation at equilibrium in the Sherrington-Kirkpatrick Ising spin glass (ISG) model, at and above the critical temperature T-g. The data show a long time stretched exponential relaxation q(t) similar to exp{-[t/tau(T)](beta(T))} with an exponent beta(T) tending to approximate to 1/3 at T-g. The results are compared to those which were observed by A. T. Ogielski, [Phys. Rev. B 32, 7384 (1985)] in the three-dimensional ISG model and are discussed in terms of a phase space percolation transition scenario.

【 授权许可】

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