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cond-mat2003
Dynamical instability of a dark soliton in a quasi-one-dimensional Bose-Einstein condensate perturbed by an optical lattice
N. G. Parker, N. P. Proukakis, C. F. Barenghi +1
The motion of a dark soliton is investigated in a one-dimensional dilute Bose-Einstein condensate confined in a harmonic trap and an optical lattice. The harmonic trap induces a dy…
cond-mat2003
Deformation of dark solitons in inhomogeneous Bose-Einstein condensates
N. G. Parker, N. P. Proukakis, M. Leadbeater +1
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…
cond-mat2002
Soliton-sound interactions in quasi-one-dimensional Bose-Einstein condensates
N. G. Parker, N. P. Proukakis, M. Leadbeater +1
Longitudinal confinement of dark solitons in quasi-one-dimensional Bose-Einstein condensates leads to sound emission and reabsorption. We perform quantitative studies of the dynami…