Spatial Resolution of Spin Waves in an Ultracold Gas
J M. McGuirk, H J. Lewandowski, D M. Harber, T Nikuni, J E. Williams, Eric A. Cornell
We present the first spatially resolved images of spin waves in a gas. The complete longitudinal and transverse spin field as a function oftime and space is reconstructed. Frequencies and damping rates for a standing-wave mode are extracted and compared with theory.