Calculations of photodissociation in intense laser fields: Validity of the adiabatic elimination of the continuum

M. E. Sukharev, E. Charron, A. Suzor-Weiner, M. V. Fedorov

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

We investigate the range of applicability of the approximations of adiabatic and semiadiabatic elimination of the continuum in the numerical simulation of strong field photodissociation processes. By comparing exact and approximate calculations of the fragmentation of the H2+ molecular ion when excited by a short and intense laser pulse, we show that these approximations do not hold when a few excited vibrational states are transiently populated. This failure mainly arises from the fast variation of the phases of the excited-state time-dependent amplitudes.

Original languageEnglish (US)
Pages (from-to)452-459
Number of pages8
JournalInternational Journal of Quantum Chemistry
Volume99
Issue number4
DOIs
StatePublished - Jun 23 2004
Externally publishedYes

Keywords

  • Adiabatic elimination
  • Intense laser fields
  • Photodissociation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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