TY - JOUR
T1 - Quantum control of double ionization of calcium
AU - Sukharev, Maxim
AU - Charron, Eric
AU - Suzor-Weiner, Annick
PY - 2002/1/1
Y1 - 2002/1/1
N2 - We have performed nonperturbative time-dependent calculations of single and double ionization of atomic calcium by short and intense laser pulses using a two-active-electron model. It is shown that the significant enhancement of the [Formula Presented] yield observed in a recent experiment [E. Papastathopulous, M. Strehle, and G. Gerber (unpublished)] using feedback control techniques originates from the time asymmetry of the pulse shape. Numerical simulations have been performed for various asymmetrical pulses. The initial part of the pulse prepares a coherent superposition of excited states which is transferred into the double-electron continuum at later times. An asymmetric shape, with a slowly decreasing tail, therefore favors the production of [Formula Presented] Single-active-electron calculations have also been performed to demonstrate the significant role played by electron correlations and by doubly excited states.
AB - We have performed nonperturbative time-dependent calculations of single and double ionization of atomic calcium by short and intense laser pulses using a two-active-electron model. It is shown that the significant enhancement of the [Formula Presented] yield observed in a recent experiment [E. Papastathopulous, M. Strehle, and G. Gerber (unpublished)] using feedback control techniques originates from the time asymmetry of the pulse shape. Numerical simulations have been performed for various asymmetrical pulses. The initial part of the pulse prepares a coherent superposition of excited states which is transferred into the double-electron continuum at later times. An asymmetric shape, with a slowly decreasing tail, therefore favors the production of [Formula Presented] Single-active-electron calculations have also been performed to demonstrate the significant role played by electron correlations and by doubly excited states.
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U2 - 10.1103/PhysRevA.66.053407
DO - 10.1103/PhysRevA.66.053407
M3 - Article
AN - SCOPUS:85037248821
VL - 66
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 5
ER -