Transition matrix elements in the closed form for free-free transitions and ATI of atomic hydrogen in Rydberg states

Karule, Erna
July 2000
AIP Conference Proceedings;2000, Vol. 525 Issue 1, p3
Academic Journal
Two-photon free-free transitions take place in such processes as the ionization with excess photons and bremsstralung. In nonrelativistic dipole approximation it is convenient to use the Green’s function formalism. Up to now in the configuration space free-free transition amplitudes have not been written in the closed form [1]. The modified Coulomb Green’s function (CGF) Sturmian expansion is derived and analytic expressions for two-photon bound-free and free-free transition amplitudes are obtained. © 2000 American Institute of Physics.


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