Geodesic
Asymptotic solution of a~multichannel scattering problem with a~nonadiabatic coupling
Teoretičeskaâ i matematičeskaâ fizika, Tome 195 (2018) no. 3, pp. 437-450

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We consider a multichannel scattering problem in an adiabatic representation. We assume that the nonadiabatic coupling matrix has a nontrivial value at large internuclear separations, and we construct asymptotic solutions at large internuclear distances. We show that these solutions up to the first order of the perturbation theory are identical to the asymptotic solutions of the reprojection approach, which was previously proposed as a means for solving the electron translation problem in the context of the Born–Oppenheimer method.
Keywords: multichannel scattering, asymptotic solution of a scattering problem, adiabatic approximation. 
@article{TMF_2018_195_3_a5,
     author = {S. L. Yakovlev and E. A. Yarevsky and N. O. Elander and A. K. Belyaev},
     title = {Asymptotic solution of a~multichannel scattering problem with a~nonadiabatic coupling},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {437--450},
     publisher = {mathdoc},
     volume = {195},
     number = {3},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2018_195_3_a5/}
}
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S. L. Yakovlev; E. A. Yarevsky; N. O. Elander; A. K. Belyaev. Asymptotic solution of a~multichannel scattering problem with a~nonadiabatic coupling. Teoretičeskaâ i matematičeskaâ fizika, Tome 195 (2018) no. 3, pp. 437-450. http://geodesic.mathdoc.fr/item/TMF_2018_195_3_a5/