Dynamics of rotating Bose-Einstein condensates probed by Bragg scattering

Details Dynamics of rotating Bose-Einstein condensates probed by Bragg scattering Dynamics of rotating Bose-Einstein condensates probed by Bragg scattering

2006-06-06

arxiv.org/abs/cond-mat/0606129v1

Math. Comput. Simul., 74, 397-404 (2007)

Physics

Condensed Matter

Other Condensed Matter

13 pages, 5 figures. Invited paper submitted to a special issue on "Nonlinear Waves" of the (Elsevier) journal 'Math. Comput.

Scientific paper

10.1016/j.matcom.2006.10.029

Gaseous Bose-Einstein condensates (BECs) have become an important test bed for studying the dynamics of quantized vortices. In this work we use two-photon Doppler sensitive Bragg scattering to study the rotation of sodium BECs. We analyze the microscopic flow field and present laboratory measurements of the coarse-grained velocity profile. Unlike time-of-flight imaging, Bragg scattering is sensitive to the direction of rotation and therefore to the phase of the condensate. In addition, we have non-destructively probed the vortex flow field using a sequence of two Bragg pulses.

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