Dresden 2017 – wissenschaftliches Programm
BP 56.5: Vortrag
Donnerstag, 23. März 2017, 16:15–16:30, SCH A251
Barrier crossing in the presence of long memory - a global analysis — •Julian Kappler, Jan O. Daldrop, Florian N. Brünig, and Roland R. Netz — Freie Universität Berlin, Germany
Rate theories are a widely used and important means for predicting meso- and macroscopic time scales from microscopic dynamics. The present rate theories for non-Markovian microscopic dynamics, i.e. in the presence of memory effects, are quite complicated to implement and have not been studied systematically for dynamics with long memory time. In our contribution, we present a global analysis of barrier crossing rates based on simulations of the massive Langevin equation with exponential memory. We extract the scaling behavior of the rates for long memory, indicate limits of current rate theories, and additionally provide a heuristic formula to calculate accurate rates quickly and easily.