Universal properties of the three-body scattering length and its relation to Efimov physics

POSTER

Abstract

In this work we study elastic properties involving three free atoms in the regime in which the interatomic interactions are strongly affected by a Feshbach resonance. Using the hyperspherical adiabatic representation we have determined the corresponding three-body scattering length and explore its connections with the energy levels of three particles in a harmonic trap. In particular, we study the relation between the three-body scattering length and the energy levels in the trap when the two-body scattering length is tuned near a Efimov resonance.

*Supported by National Science Foundation.

Authors

  • J.P. D'Incao

    • JILA, Dept of Physics, University of Colorado
    • Department of Physics and JILA, University of Colorado, Boulder, Colorado 80309, USA
    • Department of Physics and JILA, University of Colorado, Boulder

  • Chris Greene

    • Dept of Physics, Purdue University
    • Department of Physics, Purdue University, West Lafayette, Indiana 47907, USA
    • Purdue University
    • JILA, physics department of University of Colorado at Boulder, physics department of Purdue University
    • Physics Department Purdue University
    • Department of Physics, Purdue University
    • Department of Physics, Purdue University, Department of Physics and JILA, University of Colorado