Hybrid surface-flux method for extraction of the ionization amplitude from the calculated wave function

@article{Serov2013HybridSM,
  title={Hybrid surface-flux method for extraction of the ionization amplitude from the calculated wave function},
  author={Vladislav V. Serov and Tatyana A. Sergeeva and Sergue Vinitsky},
  journal={Physical Review A},
  year={2013},
  volume={88},
  pages={043403}
}
A method is proposed for extracting ionization amplitudes from the solution of the time-dependent Schr\"odinger equation (TDSE) describing a system in a time-dependent external field. The method is a hybrid of two earlier developed methods, the time-dependent surface flux (t-SURFF) method and the method using the propagated wavepacket as the source term in a time-independent driven Schr\"odinger equation with the field-free Hamiltonian. It is demonstrated that the method combines the advantages… 
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