Session K3: Excitations in Bose and Spinor Gases
2:00 PM–4:00 PM, Wednesday, June 15, 2011
Room: A703
Chair: Mukund Vengalattore, Cornell University
Abstract ID: BAPS.2011.DAMOP.K3.4
Abstract: K3.00004 : Probing Bogoliubov phonons in quasi-2D BECs
2:36 PM–2:48 PM
Preview Abstract
MathJax On | Off 
Abstract 
Authors:
Lin Xia
(JILA, NIST, University of Colorado (Boulder), Department of Physics at University of Colorado (Boulder))
Dan Lobser
(JILA, NIST, University of Colorado (Boulder), Department of Physics at University of Colorado (Boulder))
Eric Cornell
(JILA, NIST, University of Colorado (Boulder), Department of Physics at University of Colorado (Boulder))
Quasi-2D condensate slices are created by loading a 3D Bose-Einstein condensate into a 1D optical lattice. Using a microwave pumping scheme a single layer is isolated. Bogoliubov phonons are projected onto free particles by rapidly turning off interatomic interactions. A temporal focusing technique is used to probe the momentum distribution of the resulting cloud. We measure correlations between density fluctuations at k and -k in the images and compare with Bogoliubov theory. This work funded by ONR and NSF.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.DAMOP.K3.4