Basis-set expansion and truncation approach to interacting Bose particles problem

POSTER

Abstract

As ultracold gases push into regimes beyond mean-field physics, alternative approaches are required to follow their behavior. To this end, we investigate a basis set expansion and truncation scheme based on perturbation theory to obtain approximate ground state energies as a function of interaction parameter. We explore the ability of this approach to describe interacting Bose particles in 1D and 3D.

Authors

  • Michelle Wynne Sze

    JILA, University of Colorado at Boulder

  • Andrew Sykes

    JILA, UC Boulder, JILA

  • John Corson

    JILA, University of Colorado at Boulder

  • John Bohn

    JILA, University of Colorado and National Institute of Standards and Technology, Boulder, CO 80309, JILA, University of Colorado and National Institute of Standards and Technology, Boulder, CO, JILA, NIST and Department of Physics, University of Colorado, JILA, University of Colorado at Boulder