DIFFUSION IN A DISORDERED SYSTEM WITH A DIPOLE-DIPOLE INTERACTION

Random walks in a disordered medium with a dipole-dipole transport are studied, ft is proved that the long-time asymptotic behavior is of a diffusion character and the diffusion coefficient is determined. The a nalysis is based on a new, efficient, numerical-modeling method employ ing direct calculation of the Fourier transform of the propagator and periodic continuation of the system without periodic continuation of t he initial condition. (C) 1995 American Institute of Physics.