Analysis of the Four-Boson System with Large Scattering Length

ORAL

Abstract

We investigate the properties of four-boson systems interacting through a short-range two-body potential. Tuning the scattering length close to unitarity, we analyze the universal aspects of such systems. Combining correlated Gaussian calculations with a hyperspherical treatment, we obtain hyperspherical effective potentials and study the collisional aspects for such bosonic systems. In particular, we consider possible Efimov trimer formation due to dimer-dimer collisions.

*This work was supported by the National Science Foundation.

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Authors

  • Javier von Stecher

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

  • J.P. D'Incao

    • JILA, Department of Physics, University of Colorado
    • JILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440
    • JILA, University of Colorado and NIST

  • Chris Greene

    • JILA and Department of Physics, University of Colorado, Boulder, Colorado 80309-0440
    • JILA, Department of Physics, University of Colorado
    • JILA and the Department of Physics, University of Colorado, Boulder CO
    • JILA and University of Colorado at Boulder