Lieb mode in a quasi-one-dimensional bose-einstein condensate of atoms.
نویسندگان
چکیده
We calculate the dispersion relation associated with a solitary wave in a quasi-one-dimensional Bose-Einstein condensate of atoms confined in a harmonic, cylindrical trap in the limit of weak and strong interactions. In both cases, the dispersion relation is linear for long-wavelength excitations and terminates at the point where the group velocity vanishes. We also calculate the dispersion relation of sound waves in both limits of weak and strong coupling.
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ورودعنوان ژورنال:
- Physical review letters
دوره 89 7 شماره
صفحات -
تاریخ انتشار 2002