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Accueil > Séminaires > 2011

Paradoxes of the Born-Oppenheimer Approach to Collision Processes. Their Origins and Remedies.

Andrey K. Belyaev, Herzen University, St. Petersbourg (Russie)

Séminaire LCPQ / LCAR

Salle de séminaire IRSAMC

The standard adiabatic Born-Oppenheimer approach to collision processes is revised. It will be shown that the conventional applications of the Born-Oppenheimer approach to inelastic collision processes lead to a number of paradoxes. The origins of the paradoxes, as well as possible remedies will be discussed. It will be shown that the origins of the paradoxes are related to fundamental features of the Born-Oppenheimer approach. One of the remedies, the multielectron reprojection method will be demonstrated for the example of low-energy inelastic Li + Na collisions for which the conventional application of the standard Born-Oppenheimer approach fails.