Analytic structure of the eigenvalue problem as used in semiclassical theory of electronically inelastic collisions
- 1 February 1976
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 64 (3) , 1099-1105
- https://doi.org/10.1063/1.432297
Abstract
The analytic properties of eigenvalues and eigenvectors of analytic symmetric matrices of arbitrary size are discussed, with special attention given to the branch point structure at a degeneracy of two eigenvalues—that is, at a complex crossing point of two potential surfaces. The discussion is relevant to semiclassical theory of electronically inelastic collisions.Keywords
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