Enhancement of the critical slowing down influenced by extended defects

Abstract We study the influence of quenched extended defects on the critical dynamics of the d = 3-dimensional systems with m -component non-conserved order parameter (model A dynamics). Considering defects to be correlated in e d dimensions and randomly distributed in d − e d dimensions we obtain reliable numerical values for the critical exponents governing divergence of the relaxation time as function of m and e d .