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Communication: Transition State Theory for dissipative systems without a dividing surface
Revuelta Peña, Fabio and Bartsch, Thomas and Benito Zafrilla, Rosa Maria and Borondo Rodríguez, Florentino
Communication: Transition State Theory for dissipative systems without a dividing surface.
"Journal of Chemical Physics", v. 136
Transition state theory is a central cornerstone in reaction dynamics. Its key step is the identification of a dividing surface that is crossed only once by all reactive trajectories. This assumption is often badly violated, especially when the reactive system is coupled to an environment. The calculations made in this way then overestimate the reaction rate and the results depend critically on the choice of the dividing surface. In this Communication, we study the phase space of a stochastically driven system close to an energetic barrier in order to identify the geometric structure unambiguously determining the reactive trajectories, which is then incorporated in a simple rate formula for reactions in condensed phase that is both independent of the dividing surface and exact.
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