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On the Use of the Kramers-Henneberger Hamiltonian in Multi-photon Ionization Calculations

Ivanov, Igor; Kheifets, Anatoli


We employ the Kramers-Henneberger Hamiltonian for time-independent calculations of two-photon ionization of atoms with one and two electrons. As compared to the electromagnetic interaction in the length and velocity gauges, the presently employed Kramers-Henneberger gauge has an advantage of the dipole matrix elements for the free-free electron transitions being finite and well-defined quantities. This circumstance simplifies considerably the computations and allows us to obtain accurate...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Journal of Physics B: Atomic, Molecular and Optical Physics
DOI: 10.1088/0953-4075/38/13/016


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