Dynamics of a rigid rod in a disordered medium with long-range spatial correlation
Dr. Ebrahim Foulaadvand (Zanjan University, Zanjan, Islamic Republic of Iran)

We investigate the diffusion of a rigid rod-like object in a two dimensional disordered host medium which consists of static point-like sources of force.
The points are distributed with long range spatial correlation and interact with the rod via a repulsive potential. The time dependence of the rod's centre of mass mean squared displacement and its rotational mean squared displacement are obtained for various degrees of long range spatial correlation and rod's lengths. These transport characteristics are compared to those obtained in previous studies for the case of homogeneous distribution of force points. It is shown that existence of long range among force points make the centre of mass diffusion anomalous while the rotational diffusion remains normal.