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Soliton-Sound Interactions in Quasi-One-Dimensional Bose-Einstein Condensates

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.

Publication metadata

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


DOI: 10.1103/PhysRevLett.90.220401


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