Soliton-sound interactions in quasi-one-dimensional Bose-Einstein condensates

Parker, N.G.; Proukakis, N.P.; Leadbeater, M.; Adams, C.S.

Abstract

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.

Citation

Parker, N., Proukakis, N., Leadbeater, M., & Adams, C. (2003). Soliton-sound interactions in quasi-one-dimensional Bose-Einstein condensates. Physical Review Letters, 90(22), https://doi.org/10.1103/physrevlett.90.220401

• Journal Article Type: Article
• Publication Date: 2003-06
• Deposit Date: Nov 27, 2006
• Publicly Available Date: Sep 13, 2010
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 90
• Issue: 22
• DOI: https://doi.org/10.1103/physrevlett.90.220401
• Keywords: Dark solitons, Vortex rings, Dynamics, Decay, Waves, Temperatures, Instability, Modes.
• Public URL: https://durham-repository.worktribe.com/output/1595842