Soliton-sound interactions in quasi-one-dimensional Bose-Einstein condensates (2003)
Journal Article
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

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 weake... Read More about Soliton-sound interactions in quasi-one-dimensional Bose-Einstein condensates.

Deformation of dark solitons in inhomogeneous Bose–Einstein condensates. (2003)
Journal Article
Parker, N., Proukakis, N., Leadbeater, M., & Adams, C. (2003). Deformation of dark solitons in inhomogeneous Bose–Einstein condensates. Journal of Physics B: Atomic, Molecular and Optical Physics, 36(13), 2891-2910. https://doi.org/10.1088/0953-4075/36/13/318

A dark soliton becomes unstable when it is incident on a background density gradient, and the induced instability results in the emission of sound. Detailed quantitative studies of sound emission are performed for various potentials, such as steps, l... Read More about Deformation of dark solitons in inhomogeneous Bose–Einstein condensates..