Dynamics in a spin glass model with large order parameter fluctuations

(Received 1 October 1990, revised 17 Decembre 1990, accepted 30 January 1991)

Abstract
A dynamical extension of the mean spherical model for spin glasses is presented. Features of nonselfaveraging and large fluctuations present in the original model are seen to result in the existence of a spectrum of time scales of relaxation, leading to non-exponential spin correlations.