From single-particle excitations to sound waves in a box-trapped atomic Bose-Einstein condensate
We experimentally and theoretically investigate the lowest-lying axial excitation of an atomic Bose-Einstein condensate in a cylindrical box trap. By tuning the atomic density, we observe how the nature of the mode changes from a single-particle excitation (in the low-density limit) to a sound wave...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Published: |
American Physical Society
2019
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