The quantum normal form approach to reactive scattering: The cumulative reaction probability for collinear exchange reactions

Goussev, Arseni, Schubert, Roman, Waalkens, Holger and Wiggins, Stephen (2009) The quantum normal form approach to reactive scattering: The cumulative reaction probability for collinear exchange reactions. The Journal of Chemical Physics, 131. p. 144103. ISSN 0021-9606

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Official URL: http://dx.doi.org/10.1063/1.3245402

Abstract

The quantum normal form approach to quantum transition state theory is used to compute the cumulative reaction probability for collinear exchange reactions. It is shown that for heavy-atom systems such as the nitrogen-exchange reaction, the quantum normal form approach gives excellent results and has major computational benefits over full reactive scattering approaches. For light atom systems such as the hydrogen-exchange reaction however, the quantum normal approach is shown to give only poor results. This failure is attributed to the importance of tunneling trajectories in light atom reactions that are not captured by the quantum normal form as indicated by the only very slow convergence of the quantum normal form for such systems.

Item Type: Article
Subjects: F100 Chemistry
F300 Physics
G100 Mathematics
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Arseni Goussev
Date Deposited: 07 Nov 2012 15:59
Last Modified: 08 May 2017 21:10
URI: http://nrl.northumbria.ac.uk/id/eprint/10196

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