GENERALIZED MASTER-EQUATIONS FOR THE ELECTRON-TRANSFER IN A MOLECULAR DIMER

The electron transfer in a molecular dimer is described using density-matrix theory formulated in a representation with the Born-Oppenheimer states of the single monomer. The approach allows an exact handling of the electron-vibration dynamics of the isolated dimer and a renormalization of the inter-monomer coupling up to the second order in the dimer-environment interaction. After changing to a rate equation with memory contributions (generalized master equation), we analyze the switching mechanism of the electron transfer (discussed in a previous paper) with respect to the influence of the dimer-environment interaction. © 1990.