Parker, N. G. and Proukakis, N. P. and Leadbeater, M. and Adams, C. S. (2003) 'Soliton-sound interactions in quasi-one-dimensional Bose-Einstein condensates.', Physical review letters., 90 (22). p. 220401.
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.
|Keywords:||Dark solitons, Vortex rings, Dynamics, Decay, Waves, Temperatures, Instability, Modes.|
|Full text:||(VoR) Version of Record|
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|Publisher Web site:||http://dx.doi.org/10.1103/PhysRevLett.90.220401|
|Publisher statement:||© 2003 by The American Physical Society. All rights reserved.|
|Record Created:||27 Nov 2006|
|Last Modified:||13 Sep 2010 14:31|
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