Date: 2011-9-14, 3:00pm

Venue:Conference Hall 322, Science Building

Title: Taming Divergence in Quantum Gases Near Resonance:3D Nearly fermionized Bose gases

Speaker: Prof. Fei Zhou

University of British Columbia, Vancouver, Canada

Abstract:For more than half-century, our understanding of quantum degenerate gases has been very much based on the dilute-gas theories which are applicable in the limit of weak scattering. Ultra-cold gases near resonance are a new platform that experimentalists have been using to explore exciting physics beyond the dilute limit. This unique opportunity also poses a great challenge to theorists in the community: how to further regularize the formally divergent energy density appearing in the dilute gas theory.

In this talk, I am going to report recent progress made on resumation of most divergent contributions to the energy density of Bose gases near resonance. Our result suggests that Bose gases near resonance should be nearly fermionized. I will also discuss the relation to the Lee-Yang-Huang corrections, estimation of the three-body correlations.