J. Phys. I France 1 (1991) 1087-1091
Numerical studies of the spin-flip dynamics in the SK-modelG.A. Kohring and M. Schreckenberg
Institut für Theoretische Physik, Universität zu Köln, Zülpicherstr. 77, D-5000 Köln 41, Germany
(Received 15 May 1991, accepted 23 May 1991)
The spin-flip dynamics of the SK-model is studied numerically with systems of up to 105 spins. For sequential dynamics at T=0 we find a remanent magnetization of which is about half the value found earlier for much smaller systems. Furthermore we have calculated the percentage of spins which flip n times during the descent into a metastable state. Remarkably, the number of spins which never flip ( n=0) is asymptotically equal to the number of spins which flip only once (n=1). Therefore the dominant contribution to the remanent magnetization comes from the spins which flip twice (n=2). We have found the convergence time, with the system sizes used here, to diverge faster than a simple power law.
© Les Editions de Physique 1991