Ab initio calculation of the double ionization of helium in a few-cycle laser pulse beyond the one-dimensional approximation

We present ab initio computations of the ionization of two-electron atoms by short pulses of intense linearly polarized Ti:sapphire laser radiation beyond the one-dimensional approximation. In the model the electron correlation is included in its full dimensionality, while the center-of-mass motion...

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Bibliographic Details
Published in:Physical review letters 2006-02, Vol.96 (5), p.053001-053001, Article 053001
Main Authors: Ruiz, Camilo, Plaja, Luis, Roso, Luis, Becker, Andreas
Format: Article
Language:English
Subjects:
APPROXIMATIONS
ATOMS
CENTER-OF-MASS SYSTEM
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
ELECTRON CORRELATION
HELIUM
LASER RADIATION
LASERS
ONE-DIMENSIONAL CALCULATIONS
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
POLARIZATION
PULSES
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Summary:We present ab initio computations of the ionization of two-electron atoms by short pulses of intense linearly polarized Ti:sapphire laser radiation beyond the one-dimensional approximation. In the model the electron correlation is included in its full dimensionality, while the center-of-mass motion is restricted along the polarization axis. Our results exhibit a rich double ionization quantum dynamics in the direction transversal to the field polarization, which is neglected in the previous models based on the one-dimensional approximation.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.96.053001