Percolation transition and the onset of nonexponential relaxation in fully frustrated models

We numerically study the dynamical properties of fully frustrated models in two and three dimensions. The results obtained support the hypothesis that the percolation transition of the Kasteleyn-Fortuin clusters corresponds to the onset of stretched exponential autocorrelation functions in systems without disorder. This dynamical behavior may be due to the ''large scale'' effects of frustration, present below the percolation threshold. Moreover, these results are consistent with the picture suggested by Campbell es al. [J. Phys. C 20, L47 (1987)] in the space of configurations. [S1063-651X(98)07412-1].