Electronic correlations in double ionization of atoms in pump-probe experiments

Abstract

The ionization dynamics of a two-electron atom in an attosecond XUV-infrared pump-probe experiment is simulated by solving the time-dependent two-electron Schrödinger equation. A dramatic change of the double ionization (DI) yield with variation of the pump-probe delay is reported and the governing role of electron-electron correlations is shown. The results allow for a direct control of the DI yield and of the relative strength of double and single ionization.

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• Ultrafast Dynamics of Strongly Correlated Fermions -- Nonequilibrium Green Functions and Selfenergy Approximations
• Electronic double-excitations in quantum wells: solving the two-time Kadanoff-Baym equations
• Theoretical description of field-assisted post-collision interaction in Auger decay of atoms
• Correlation effects in strong-field ionization of heteronuclear diatomic molecules
• Field-assisted doublon manipulation in the Hubbard model. A quantum doublon ratchet