Decoherence effects in reactive scattering

摘要

Decoherence effects on quantum and classical dynamics in reactive scattering are examined using a Caldeira-Leggett type model.Through a study of the dynamics of the collinear H+H_2 reaction and the transmission over simple one-dimensional barrier potentials,we show that decoherence leads to improved agreement between quantum and classical reactions and transmission probabilities,primarily by increasing the energy dispersion in a well-defined way.Increased potential nonlinearity is seen to require larger decoherence in order to attain comparable quantum-classical agreement.