Bragg spectroscopy of a Bose-Einstein condensate

A.P. Chikkatur; D.E. Pritchard; D.M. Stamper--Kurn; J. Stenger; S. Inouye; W. Ketterle

arxiv: cond-mat/9901109 · v1 · submitted 1999-01-12 · ❄️ cond-mat

Bragg spectroscopy of a Bose-Einstein condensate

J. Stenger , S. Inouye , A.P. Chikkatur , D.M. Stamper--Kurn , D.E. Pritchard , W. Ketterle This is my paper

classification ❄️ cond-mat

keywords condensatebraggenergymomentumbose-einsteinspectroscopyallowedcoherence

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Properties of a Bose-Einstein condensate were studied by stimulated, two-photon Bragg scattering. The high momentum and energy resolution of this method allowed a spectroscopic measurement of the mean-field energy and of the intrinsic momentum uncertainty of the condensate. The coherence length of the condensate was shown to be equal to its size. Bragg spectroscopy can be used to determine the dynamic structure factor over a wide range of energy and momentum transfers.

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