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Lookup NU author(s): Professor Nikolaos ProukakisORCiD
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Longitudinal confinement of dark solitons in quasi-one-dimensional Bose-Einstein condensates leads to sound emission and reabsorption. We perform quantitative studies of the dynamics of a soliton oscillating in a tight dimple trap, embedded in a weaker harmonic trap. The dimple depth provides a sensitive handle to control the soliton-sound interaction. In the limit of no reabsorption, the power radiated is found to be proportional to the soliton acceleration squared. An experiment is proposed to detect sound emission as a change in amplitude and frequency of soliton oscillations.
Author(s): Parker NG, Proukakis NP, Leadbeater M, Adams CS
Publication type: Article
Publication status: Published
Journal: Physical Review Letters
Year: 2003
Volume: 90
Issue: 22
ISSN (print): 0031-9007
ISSN (electronic): 1079-7114
Publisher: American Physical Society
URL: http://dx.doi.org/10.1103/PhysRevLett.90.220401
DOI: 10.1103/PhysRevLett.90.220401
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