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 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.
Departamento de Física Aplicada, Universidad de Salamanca, E-37008 Salamanca, Spain.
Camilo
C
Ruiz
Luis
L
Plaja
Luis
L
Roso
Andreas
A
Becker