title: Exact solution of the excited-state geminate A*+B <==> C*+D reaction with two different lifetimes and quenching.
abstract: The authors obtain, in the Laplace transform space, the exact analytic solution for the Green function and survival probabilities for the excited-state diffusion-influenced reversible geminate reaction, A*+B <==> C*+D, with two different lifetimes and in the presence of an added quenching process. This extends a previous investigation by Popov and Agmon [J. Chem. Phys. 117, 5770 (2002)] of the ground-state reaction without quenching. The long-time asymptotic behavior of the survival probabilities is obtained in the time domain. It is found to be different from the equal-lifetime case. This paper also provides a useful short-time approximation for the kinetics.
authors.affiliation: School of Chemistry, Seoul National University, Seoul 151-747, Korea.
authors.forename: Soohyung
authors.initials: S
authors.lastname: Park
authors.forename: Kook Joe
authors.initials: KJ
authors.lastname: Shin
authors.forename: Noam
authors.initials: N
authors.lastname: Agmon