Measuring the Superfluid Fraction of an Ultracold Atomic Gas

Authors :: Nigel R. Cooper
Zoran Hadzibabic
Publication Year :: 2009
Publisher :: arXiv, 2009.
Abstract: We propose a method to measure the superfluid fraction of an atomic gas. The method involves the use of a vector potential generated by optical beams with non-zero angular momentum to simulate uniform rotation. The induced change in angular momentum of the atomic gas can be measured spectroscopically. This allows a direct determination of the superfluid fraction.<br />Comment: 4 pages, 2 figures