Resonant two-photon single ionization of two identical atoms.

Authors :: Müller C
Voitkiv AB
Source :: Physical review letters [Phys Rev Lett] 2011 Jul 01; Vol. 107 (1), pp. 013001. Date of Electronic Publication: 2011 Jun 27.
Publication Year :: 2011
Abstract: Resonant two-photon single ionization in a system consisting of two spatially well-separated identical atoms is studied. Because of two-center electron-electron correlations, the ionization may also proceed through photoexcitation of both atoms with subsequent interatomic Coulombic decay. We show that this channel may qualitatively change the dependence of the photoionization on the field intensity as well as the spectra of emitted electrons.