Quasiparticle energy in a strongly interacting homogeneous Bose-Einstein condensate

Quasiparticle energy in a strongly interacting homogeneous Bose-Einstein condensate

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 the excitation resonance from the free...

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Bibliografiska uppgifter
Huvudupphovsmän:	Lopes, R, Eigen, C, Barker, A, Viebahn, KGH, Robert-de-Saint-Vincent, M, Navon, N, Hadzibabic, Z, Smith, RP
Materialtyp:	Journal article
Språk:	English
Publicerad:	American Physical Society 2017

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