5 papers
Emergence and decay of turbulence in stirred atomic Bose-Einstein condensates
N. G. Parker, C. S. Adams
We show that a `weak' elliptical deformation of an atomic Bose-Einstein condensate rotating at close to the quadrupole instability frequency leads to turbulence with a Kolmogorov e…
Analogies between dark solitons in atomic Bose-Einstein condensates and optical systems
N. P. Proukakis, N. G. Parker, D. J. Frantzeskakis +1
Dark solitons have been observed in optical systems (optical fibres, dielectric guides and bulk media), and, more recently, in harmonically confined atomic Bose-Einstein condensate…
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…
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…
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…