35 citations · 54 across the 4 of their papers we have counts for
4 papers
Multichannel Scattering Problem with Non-trivial Asymptotic Non-adiabatic Coupling
S L Yakovlev, E A Yarevsky, N Elander +1
The multichannel scattering problem in an adiabatic representation is considered. The non-adiabatic coupling matrix is assumed to have a non-trivial constant asymptotic behavior at…
A potential-splitting approach applied to the Temkin-Poet model for electron scattering off the hydrogen atom and the helium ion
E. Yarevsky, S. L. Yakovlev, Å. Larson +1
The study of scattering processes in few body systems is a difficult problem especially if long range interactions are involved. In order to solve such problems, we develop here a…
A method for extracting the resonance parameters from experimental cross section
S. A. Rakityansky, N. Elander
The matrix elements of the multi-channel Jost matrices are written in such a way that their dependencies on all possible odd powers of channel momenta are factorized explicitly. As…
Pade approximation of the S-matrix as a way of locating quantum resonances and bound states
S. A. Rakityansky, S. A. Sofianos, N. Elander
It is shown that the spectral points (bound states and resonances) generated by a central potential of a single-channel problem, can be found using rational parametrization of the…