Ultracold four-body collisions of two-spin fermionic atoms

ORAL

Abstract

We have performed {\em ab initio} calculations for the four fermions system in two different spin states. From these calculations we were able to extract the scattering length dependence for the scattering observables which are relevant for current experiments in ultracold fermionic quantum gases. We have calculated, for instance, the dimer-dimer scattering length and explored the finite energy dependence concening the experimental range of temperatures in the strongly interacting regime. Due to the finite range of our interatomic model we also were able to explore finite scattering length corrections to the dimer-dimer scattering length. This work was supported by the National Science Foundation.

–

Authors

  • Jose P. D'Incao

    JILA, University of Colorado, Boulder, CO 80309, JILA, University of Colorado, Boulder

  • Nirav P. Mehta

    JILA, University of Colorado, Boulder CO, 80309, JILA, University of Colorado, Boulder

  • Seth T. Rittenhouse

    Department of Physics and JILA, University of Colorado, Boulder

  • Chris H. Greene

    Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309 - 0440, USA, Department of Physics and JILA, University of Colorado, Boulder, Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309-0440, Department of Physics and JILA, University of Colorado, Boulder CO 80309, Department of Physics and JILA, University of Colorado, Boulder, CO 80309-0440