Ab initio Calculation of the Double Ionization of Helium in a Few-Cycle Laser Pulse Beyond the One-Dimensional Approximation

Journal Article · Fri Feb 10 00:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.053001· OSTI ID:20777019

Ruiz, Camilo; Plaja, Luis; Roso, Luis ^[1]; Becker, Andreas ^[2]

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1. Departamento de Fisica Aplicada, Universidad de Salamanca, E-37008 Salamanca (Spain)
2. Max-Planck-Institut fuer Physik komplexer Systeme, Noethnitzer Strasse 38, D-01187 Dresden (Germany)

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.

• OSTI ID: 20777019
• Journal Information: Physical Review Letters, Vol. 96, Issue 5; Other Information: DOI: 10.1103/PhysRevLett.96.053001; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
APPROXIMATIONS
ATOMS
CENTER-OF-MASS SYSTEM
ELECTRON CORRELATION
HELIUM
LASER RADIATION
LASERS
ONE-DIMENSIONAL CALCULATIONS
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
POLARIZATION
PULSES