Measuring the Superfluid Fraction of an Ultracold Atomic Gas

Details Measuring the Superfluid Fraction of an Ultracold Atomic Gas Measuring the Superfluid Fraction of an Ultracold Atomic Gas

2009-10-26

arxiv.org/abs/0910.4767v1

Phys. Rev. Lett. 104, 030401 (2010)

Physics

Condensed Matter

Quantum Gases

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.104.030401

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.

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