It is shown that within the coordinate representation sudden approximation. the general amplitude S,,l.,. ,,r,r is apressed in terms of system dependent dynamical Ltcrors, \\ hich arc the amplitude S,z,i,uu, and system indcpdndent fattors which contain ti momentum transfer information. ## Recently
On the sudden approximation in atom—surface scattering
✍ Scribed by A.S. Dickinson
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 248 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
We examine the conditions for the validity of the sudden approximation and investigate the utility and validity of the weak-coupling limit of the sudden approximation. We also discuss purely classical calculations in the sudden approximation, showing that these contain the inter-relations recently established in the quantum coordinate representation sudden approximation.
📜 SIMILAR VOLUMES
The sudden approximation is used to calculate transition probabilities for vibrationally inelastic scattering in the c.m. energy range of 0.1'7-17 eV. The system studied was He+Hz using the potential oE Krauss and RIies. Effects of concurrent rotationally inelastic scattering and the orientation dep
Exact and vibrational sudden approximation (VSA) transition probabilities for He+ HIZ, Be&, BeBr, and CO2 at 0.5 to 3.0 eV are calculated and compared. The agreement between the VSA and the exact results for the excitation of the symmetric stretch is excellent for HI2 (even for large changes in the