Strong field approximation within a Faddeev-like formalism for laser-matter interactions

Popov, Youri;Galstyan, Alexander;Mota-Furtado, Francisca;O'Mahony, Patrick;Piraux, Bernard
(2017) European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics — Vol. 71, n° 4, p. 93 [1-7] (2017)

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Authors
  • Popov, YouriUCLouvain
    Author
  • Galstyan, AlexanderUCLouvain
    Author
  • Mota-Furtado, Francisca
    Author
  • O'Mahony, PatrickUCLouvain
    Author
  • Piraux, BernardUCLouvain
    Author
Abstract
We consider the interaction of atomic hydrogen with an intense laser field within the strong-field approximation. By using a Faddeev-like formalism, we introduce a new perturbative series in the binding potential of the atom. As a first test of this new approach, we calculate the electron energy spectrum in the very simple case of a photon energy higher than the ionisation potential. We show that by contrast to the standard perturbative series in the binding potential obtained within the strong field approximation, the first terms of the new series converge rapidly towards the results we get by solving the corresponding time-dependent Schrödinger equation.
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Citations

Popov, Y., Galstyan, A., Mota-Furtado, F., O’Mahony, P., & Piraux, B. (2017). Strong field approximation within a Faddeev-like formalism for laser-matter interactions. European Physical Journal D. Atomic, Molecular, Optical and Plasma Physics, 71(4), 93 [1-7]. https://doi.org/10.1140/epjd/e2017-70708-7 (Original work published 2017)