Vibrational energy transfer in polyatomic molecule collisions. I. High order corrections to the transition probabilities of vibrational energy transfer
Journal Article
·
· Journal of Chemical Physics
An expansion technique of the evolution operator using the MAGNUS formalism enabled us to study the transition probability at one, two, three, and four quanta of vibration between the oscillators of two polyatomic molecules during a collision. In this paper the collisions are supposed to be not energetic enough to cause a series of multiple transitions, and the theory allowed us to study the validity of the first approximation of Born. At the same time the present work proposes a preliminary approach to the influence of the cubic and quartic potential constants and of the vibrational resonance on the vibrational transitions induced by collisions between polyatomic molecules. The theory is then applied to the collision CO$sub 2$--He.
- Research Organization:
- Laboratoire de Physique Moleculaire, Universite de Besancon, 25030-Besancon Cedex, France
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-33-004027
- OSTI ID:
- 4149265
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 7 Vol. 63; ISSN JCPSA6; ISSN 0021-9606
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
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