All Abstracts | Poster Abstracts | Talk Abstracts | Tutorial Abstracts

Number counting atoms in an RF-dressed double well

Joseph Thywissen, University of Toronto

(Session : Thursday from )

Abstract. Ultracold atoms in a double well potential can display a wide range of physical effects. Recent work has included Josephson oscillations, self-trapping nonlinearities, useful squeezing, phase diffusion, phase fluctuations, and one-dimensional physics. We discuss our progress in using number counting to explore sub- and super-poissonian fluctuations in an RF-dressed double well above a chip. We are able to count atom number fluctuations with a precision of tens of atoms, in a cloud of several thousand atoms. We also discuss the prospects for extending this work, so far only with ultracold bosons, to quantum degenerate fermions.