title: Classical two-slit interference effects in double photoionization of molecular hydrogen at high energies.
abstract: Recent experiments on double photoionization of H2 with photon energies between 160 and 240 eV have revealed body-frame angular distributions that suggest classical two-slit interference effects may be present when one electron carries most of the available energy and the second electron is not observed. We report precise quantum mechanical calculations that reproduce the experimental findings. They reveal that the interpretation in terms of classical diffraction is only appropriate at substantially higher photon energies. At the energies considered in the experiment we offer an alternative explanation based on the mixing of two nondiffractive contributions by circularly polarized light.
authors.affiliation: Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors.forename: D A
authors.initials: DA
authors.lastname: Horner
authors.forename: S
authors.initials: S
authors.lastname: Miyabe
authors.forename: T N
authors.initials: TN
authors.lastname: Rescigno
authors.forename: C W
authors.initials: CW
authors.lastname: McCurdy
authors.forename: F
authors.initials: F
authors.lastname: Morales
authors.forename: F
authors.initials: F
authors.lastname: Martín