title: The Role of Resonant Vibrations in Electronic Energy Transfer.
abstract: Nuclear vibrations play a prominent role in the spectroscopy and dynamics of electronic systems. As recent experimental and theoretical studies suggest, this may be even more so when vibrational frequencies are resonant with transitions between the electronic states. Herein, a vibronic multilevel Redfield model is reported for excitonically coupled electronic two-level systems with a few explicitly included vibrational modes and interacting with a phonon bath. With numerical simulations the effects of the quantized vibrations on the dynamics of energy transfer and coherence in a model dimer are illustrated. The resonance between the vibrational frequency and energy gap between the sites leads to a large delocalization of vibronic states, which then results in faster energy transfer and longer-lived mixed coherences.
authors.affiliation: Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands.|Institute of Physics, Charles University in Prague, Ke Karlovu 5, 12116, Prague, Czech Republic.
authors.forename: Pavel
authors.initials: P
authors.lastname: Malý
authors.affiliation: Netherlands Defence Academy, P.O. Box 10000, 1780 CA, Den Helder, The Netherlands.
authors.forename: Oscar J G
authors.initials: OJ
authors.lastname: Somsen
authors.affiliation: A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Leninskie Gory, 119992, Moscow, Russia.
authors.forename: Vladimir I
authors.initials: VI
authors.lastname: Novoderezhkin
authors.affiliation: Institute of Physics, Charles University in Prague, Ke Karlovu 5, 12116, Prague, Czech Republic.
authors.forename: Tomáš
authors.initials: T
authors.lastname: Mančal
authors.affiliation: Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands.
authors.forename: Rienk
authors.initials: R
authors.lastname: van Grondelle
mesh_terms: D004735:Energy Transfer; D014732:Vibration
keywords: energy transfer; resonant vibrations; time-resolved spectroscopy; two-dimensional electronic spectroscopy; vibronic dynamics