Bragg spectroscopy of a strongly interacting Bose-Einstein condensate

Details Bragg spectroscopy of a strongly interacting Bose-Einstein condensate Bragg spectroscopy of a strongly interacting Bose-Einstein condensate

2008-07-16

arxiv.org/abs/0807.2602v1

New Journal of Physics, 11 013030 (2009)

Physics

Condensed Matter

Other Condensed Matter

11 pages, 4 figures

Scientific paper

10.1088/1367-2630/11/1/013030

We study Bragg spectroscopy of a strongly interacting Bose-Einstein condensate using time-dependent Hartree-Fock-Bogoliubov theory. We include approximatively the effect of the momentum dependent scattering amplitude which is shown to be the dominant factor in determining the spectrum for large momentum Bragg scattering. The condensation of the Bragg scattered atoms is shown to significantly alter the observed excitation spectrum by creating a novel pairing channel of mobile pairs.

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