Forming ultracold LiK molecules from Li-K mixtures

POSTER

Abstract

We present a theoretical study of scattering properties of ultracold Li + K in an external magnetic field. Based on the isotopes involved, Li-K mixtures can have a fermi-fermi, fermi-bose or bose-bose symmetry. We use the best available molecular potentials adjusted to reproduce recent measurements of Feshbach resonances in a $^6$Li-$^{40}$K mixture\footnote{E.Wille et.al. PRL 100, 053201 (2008)} to accurately predict the positions of Feshbach resonances and other scattering properties in remaining isotopic mixtures. The effect of higher partial waves in those cases is discussed. We suggest a scheme for photoassociative formation of ultracold LiK molecules in their lowest ro-vibrational levels in the molecular ground state.

Authors

  • Sandipan Banerjee

    • Department of Physics, University of Connecticut, Storrs, CT 06269

  • Marco Gacesa

    • University of Connecticut
    • Department of Physics, University of Connecticut, Storrs, CT 06269
    • Department of Physics, University of Connecticut

  • Robin C\^ot\'e

    • Physics Department, University of Connecticut, Storrs, USA
    • University of Connecticut
    • University of Connecticut Storrs
    • Department of Physics, University of Connecticut, Storrs, CT 06269
    • Department of Physics, University of Connecticut