Numerical simulation of time delays in light-induced ionization

  title={Numerical simulation of time delays in light-induced ionization},
  author={Jing Su and Hongcheng Ni and Andreas Becker and Agnieszka Jaro'n-Becker},
  journal={Physical Review A},
(Received 23 November 2012; published 27 March 2013)We apply a fundamental definition of time delay, as the difference between the time a particle spends withina finite region of a potential and the time a free particle spends in the same region, to determine results forphotoionization of an electron by an extreme ultraviolet laser field using numerical simulations on a grid. Ournumerical results are in good agreement with those of the Wigner-Smith time delay, obtained as the derivative ofthe… 

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