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

作者：Billoire Alain^*; Campbell I A

来源：Physical Review B, 2011, 84(5): 054442.

DOI：10.1103/PhysRevB.84.054442

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.

• 出版日期2011-8-12
• 单位中国地震局