Quasiparticle Energy in a Strongly Interacting Homogeneous Bose-Einstein Condensate.
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DOI: 10.1103/physrevlett.118.210401
Abstract: Using two-photon Bragg spectroscopy, we study the energy of particlelike excitations in a strongly interacting homogeneous Bose-Einstein condensate, and observe dramatic deviations from Bogoliubov theory. In particular, at large scattering length a the shift of… read more here.
Keywords: interacting homogeneous; einstein condensate; bose einstein; energy ... See more keywords