Non-perturbative approach to multiphoton ionisation of the hydrogen and helium atoms
Date
2006
Authors
Ivanov, Igor
Kheifets, Anatoli
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Publisher
Pergamon-Elsevier Ltd
Abstract
Laser light intensities, currently obtained in the laboratories, make it possible to observe many multi-photon phenomena in the interaction of light and matter (such as multi-photon ionisation or MPI process). Theoretical description of such phenomena necessitates the use of essentially non-perturbative framework. We present such an approach based on the recasting of the Schrodinger equation for the system atom+field into a set of coupled integral equations of the Lippmann-Schwinger type.
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Keywords
Keywords: High intensity light; Hydrogen; Integral equations; Laser beams; Multiphoton processes; Perturbation techniques; Photoionization; Kramers-Henneberger Hamiltonian; Multi-photon ionization (MPI); Non-perturbative phenomena; Strong laser fields; Inert gases; Kramers-Henneberger Hamiltonian; Multi-photon ionisation; Non-perturbative phenomena; Strong laser fields
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Radiation Physics and Chemistry
Type
Journal article
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2037-12-31
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