Time-independent approach to attosecond delay experiments |
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| Marcus Dahlström | |
| Stockholm University | |
| We study laser-assisted photoionization by attosecond pulses using a time-independent formalism based on diagrammatic many-body perturbation theory. Our aim is to provide an ab initio route to the "delays" for this above-threshold ionization process, which is essential for a quantitative understanding of attosecond metrology. |