Two-photon double ionization of helium: investigating the importance of correlation in the final state

• Autorzy: Aleksander Simonsen , Sigurd Askeland , Morten Førre
• Języki publikacji: EN

Abstrakty

EN

In this paper, we present theoretical results for the process of non-sequential two-photon double ionization of helium at the photon energy 42 eV. Our approach is based on solving the time-dependent Schrödinger equation in a B-spline based numerical framework. Information about the process is obtained by extracting the double-ionized component by means of uncorrelated final states. The total (generalized) cross section for the process is extracted, as well as differential cross sections resolved in electron energies and ejection angles. We focus on the impact the final-state correlation has on the accuracy of the cross sections.

Słowa kluczowe

EN

double ionization; ionization of helium; two-photon double ionization

• Czasopismo: Open Physics
• Rocznik: 2013
• Tom: 11
• Numer: 9
• Strony: 1099-1106

Daty

wydano

2013-09-01

online

2013-11-24

Twórcy

autor

Aleksander Simonsen

• Department of Physics and Technology, University of Bergen, N-5007, Bergen, Norway,

autor

Sigurd Askeland

• Department of Physics and Technology, University of Bergen, N-5007, Bergen, Norway

autor

Morten Førre

• Department of Physics and Technology, University of Bergen, N-5007, Bergen, Norway,

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Identyfikatory

DOI

10.2478/s11534-013-0180-x