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...
| Main Authors: | , , , , , , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
American Physical Society
2017
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