Förster migration of electronic excitation between randomly distributed molecules

• DOI: 10.1063/1.435913
• Publication Date: 2003-02-27T22:38:05Z
• Authors: Steven W. Haan; Robert Zwanzig
• Keywords: Mean squared displacement

This article deals with the diffusivelike migration of electronic excitation between molecules that are randomly distributed in space. A generalized (non-Markoffian) diffusion equation is obtained, and coefficient expanded to second order molecular concentration. At early times mean squared displacement increases as 5/6th power time, instead usual first time. We conjecture that, at long times, may be described by a conventional (Markoffian) equation.