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...
| Κύριοι συγγραφείς: | , , , , , , , |
|---|---|
| Μορφή: | Journal article |
| Γλώσσα: | English |
| Έκδοση: |
American Physical Society
2017
|