Electron-electron correlation in laser-induced nonsequential double ionization - art. no. 053402

The distributions of the momenta of the two electrons liberated in nonseque ntial double ionization of neon and argon are calculated in the S-matrix fo rmalism assuming a rescattering scenario. Two different forms for the elect ron-electron correlation are compared: the Coulomb repulsion in the Born ap proximation and a three-body contact interaction including the ion. The for mer favors disparate momenta of the two electrons, the latter equal momenta .