DIFFUSION IN THE DISTORTION FIELD OF A DISLOCATION LINE

Diffusion of a classical particle on a simple Bravais lattice in the p resence of a single dislocation line is analyzed using the Fokker-Plan ck equation derived from the continuous theory of dislocations. It is shown that in the d = 2 case the diffusion coefficient is enhanced. Th is prediction is confirmed by the Monte Carlo simulation of the same d iffusion process. A possible generalization of our results is briefly outlined.