Abstract
We study the dynamics of the q-state random bond Potts ferromagnet on the square lattice at its critical point by Monte Carlo simulations with single spin-flip dynamics. We concentrate on and and find, in both cases, conventional, rather than activated, dynamics. We also look at the distribution of relaxation times among different samples, finding different results for the two q values. For the relative variance of the relaxation time at the critical point is finite. However, for this appears to diverge in the thermodynamic limit and it is which has a finite relative variance. We speculate that this difference occurs because the transition of the corresponding pure system is second order for but first order for
- Received 8 February 2002
DOI:https://doi.org/10.1103/PhysRevB.66.014438
©2002 American Physical Society