title: Communication: Resonance reaction in diffusion-influenced bimolecular reactions.
abstract: We investigate the influence of a stochastically fluctuating step-barrier potential on bimolecular reaction rates by exact analytical theory and stochastic simulations. We demonstrate that the system exhibits a new "resonant reaction" behavior with rate enhancement if an appropriately defined fluctuation decay length is of the order of the system size. Importantly, we find that in the proximity of resonance, the standard reciprocal additivity law for diffusion and surface reaction rates is violated due to the dynamical coupling of multiple kinetic processes. Together, these findings may have important repercussions on the correct interpretation of various kinetic reaction problems in complex systems, as, e.g., in biomolecular association or catalysis.
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin, Germany.
authors.forename: Jakob J
authors.initials: JJ
authors.lastname: Kolb
authors.affiliation: International Center for Soft Matter Research, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Stefano
authors.initials: S
authors.lastname: Angioletti-Uberti
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, 12489 Berlin, Germany.
authors.forename: Joachim
authors.initials: J
authors.lastname: Dzubiella