Phys. Rev. A 71, 012712 (2005) [13 pages]

Correlated multielectron systems in strong laser fields: A multiconfiguration time-dependent Hartree-Fock approach

Abstract

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J. Caillat¹, J. Zanghellini^1,2, M. Kitzler^1,2, O. Koch³, W. Kreuzer³, and A. Scrinzi^1,*
¹Photonics Institute, Vienna University of Technology Gusshausstrasse 27∕387, A-1040 Vienna, Austria
²Center of Photonics Research, University of Ottawa, 150 Louis Pasteur Street, Ottawa, ON, KIN 6N5 Canada
³Institute for Analysis and Scientific Computing, Vienna University of Technology, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria

Received 14 September 2004; published 21 January 2005

The multiconfiguration time-dependent Hartree-Fock approach for the description of correlated few-electron dynamics in the presence of strong laser fields is introduced and a comprehensive description of the method is given. Total ionization and electron spectra for the ground and first excited ionic channels are calculated for one-dimensional model systems with up to six active electrons. Strong correlation effects are found in the shape of photoelectron peaks and the dependence of ionization on molecule size.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.71.012712

DOI:

10.1103/PhysRevA.71.012712

PACS:

32.80.Fb, 32.80.Hd

^*Electronic address: scrinzi@tuwien.ac.at

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Phys. Rev. A 71, 012712 (2005) [13 pages]

Correlated multielectron systems in strong laser fields: A multiconfiguration time-dependent Hartree-Fock approach