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Comparison of semi-classical and quantum-mechanical methods for the determination of transport cross sections

✍ Scribed by Eugene Levin; David W. Schwenke; James R. Stallcop; Harry Partridge

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 586 KB
Volume: 227
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)00878-7

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✦ Synopsis

Quantitative comparisons of results obtained from a semi-classical approximation and from the numerical solution of the time-independent Schriidinger equation are presented for interactions in a system of small reduced mass involving hydrogen as one of the collision partners. The differences in transport cross sections are only significant at very low energies and consequently the effects on the collision integrals and gas transport properties diminish rapidly with increasing temperature. Furthermore, the differences also diminish rapidly with increasing values of the reduced mass.

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