Measuring the Superfluid Fraction of an Ultracold Atomic Gas

作者:Cooper Nigel R*; Hadzibabic Zoran
来源:Physical Review Letters, 2010, 104(3): 030401.
DOI:10.1103/PhysRevLett.104.030401

摘要

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 nonzero angular momenta 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.

  • 出版日期2010-1-22