Adiabatic Approximation for Nonreactive, Subexcitation, Molecular Collisions
- 1 July 1968
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 49 (1) , 51-55
- https://doi.org/10.1063/1.1669858
Abstract
The decoupling approximation, which neglects the interaction between open and closed channels, is discussed and derived from the Lippmann–Schwinger variational principle. The adiabatic approximation is shown to be the “best local” decoupling approximation in that the adiabatic phase shift is the highest lower bound to the exact phase shift obtainable from a local potential.Keywords
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