On recombination in strong laser fields: effect of a slow drift
  The dynamics of the recombination in ultrastrong atomic fields is studied for one-dimensional models by numerical simulations. A nonmonotonic behavior of the bound state final population as a function of the laser field amplitude is examined. An important role of a slow drift of an electron wave packet is observed. 
Jacek Matulewski, Andrzej Raczynski, Jaroslaw Zaremba