Closure approximation in the theory of two-photon double ionization of atoms

Chuluunbaatar, O.;Bachau, H.;Popov, Y.V.;Piraux, Bernard
(2012) Journal of Physics: Conference Series — Vol. 388, n° PART 3, p. part 032004 (2012)

Files

pdfdocument.pdf
  • Restricted Access
  • Adobe PDF
  • 364.28 KB
Request a copy

Details

Authors
  • Chuluunbaatar, O.
    Author
  • Bachau, H.
    Author
  • Popov, Y.V.
    Author
  • Piraux, BernardUCLouvain
    Author
Abstract
We consider two-photon double ionization of helium with 100, 200, and 400 eV excess energy. We focus on the case of ultrashort pulses and develop an approach to calculate the two-photon transition matrix elements within the lowest order of the time-dependent perturbation theory. It is shown, that in the subfemtosecond regime the intermediate Green's function can be successfully evaluated by means of the closure approximation. © Published under licence by IOP Publishing Ltd.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Chuluunbaatar, O., Bachau, H., Popov, Y. V., & Piraux, B. (2012). Closure approximation in the theory of two-photon double ionization of atoms. Journal of Physics: Conference Series, 388(PART 3), part 032004. https://doi.org/10.1088/1742-6596/388/3/032004 (Original work published 2012)