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Analysis of a semiclassical model for rotational transition probabilitiesA semiclassical model proposed by Pearson and Hansen (1974) for computing collision-induced transition probabilities in diatomic molecules is tested by the direct-simulation Monte Carlo method. Specifically, this model is described by point centers of repulsion for collision dynamics, and the resulting classical trajectories are used in conjunction with the Schroedinger equation for a rigid-rotator harmonic oscillator to compute the rotational energy transition probabilities necessary to evaluate the rotation-translation exchange phenomena. It is assumed that a single, average energy spacing exists between the initial state and possible final states for a given collision.
Document ID
19750062280
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Deiwert, G. S.
Yoshikawa, K. K.
(NASA Ames Research Center Moffett Field, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
September 1, 1975
Publication Information
Publication: Physics of Fluids
Volume: 18
Subject Category
Atomic And Molecular Physics
Accession Number
75A46352
Distribution Limits
Public
Copyright
Other

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