We present ab initio calculations of the interaction of the hydrogen molecule with an intense few-cycle near-infrared laser pulse beyond the one-dimensional approximation. The results show that the two pathways to nonsequential double ionization of the molecule, namely, the emission of a correlated electron pair near the zeros of the field and the electronâ€¦ (More)

We present and analyze results of ab initio computations of nonsequential double ionization of the hydrogen molecule in a few-cycle intense laser pulse. To this end, we have used a model of planar molecules with static nuclei, in which the electronic center-of-mass motion is restricted along the polarization direction of the linearly polarized laser.â€¦ (More)

L. Chomaz, S. Baier, D. Petter, M. J. Mark, F. WÃ¤chtler, L. Santos, and F. Ferlaino Institut fÃ¼r Experimentalphysik, UniversitÃ¤t Innsbruck, TechnikerstraÃŸe 25, 6020 Innsbruck, Austria Institut fÃ¼r Quantenoptik und Quanteninformation, Ã–sterreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria Institut fÃ¼r Theoretische Physik, Leibniz UniversitÃ¤tâ€¦ (More)

Ab initio computations of the interaction of two-electron atoms and molecules with ultrashort Ti:sapphire laser pulses beyond the one-dimensional approximation exhibit a rich quantum dynamics with two pathways to nonsequential double ionization.

We report on the achievement of Bose-Einstein condensation of erbium atoms and on the observation of magnetic Feshbach resonances at low magnetic field. By means of evaporative cooling in an optical dipole trap, we produce pure condensates of 168 Er, containing up to 7 Ã— 10 4 atoms. Feshbach spectroscopy reveals an extraordinary rich loss spectrum with sixâ€¦ (More)