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Dynamics of rotating Bose–Einstein condensates probed by Bragg scattering

✍ Scribed by S.R. Muniz; D.S. Naik; M. Bhattacharya; C. Raman

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 620 KB
Volume: 74
Category: Article
ISSN: 0378-4754
DOI: 10.1016/j.matcom.2006.10.029

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✦ Synopsis

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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