Abstract
A new method is presented that allows the determination of dynamical properties of disordered spin systems avoiding finite-size effects. The method is based on exact dynamical mean-field equations for the infinite large system. The resulting single-spin dynamics is solved by Monte Carlo simulations. We outline the formalism for the parallel dynamics of a fully connected model with random couplings. The decay of remanent magnetization of the model is studied. We find a power-law decay: m(t)-m(∞)∝, with a=0.474 and m(∞)=0.184 for the infinite system.
- Received 14 October 1991
DOI:https://doi.org/10.1103/PhysRevLett.68.2094
©1992 American Physical Society