63 citations · 310 across the 14 of their papers we have counts for
14 papers
Vinen turbulence via the decay of multicharged vortices in trapped atomic Bose-Einstein condensates
A. Cidrim, A. J. Allen, A. C. White +2
We investigate a procedure to generate turbulence in a trapped Bose-Einstein condensate which takes advantage of the decay of multicharged vortices. We show that the resulting sing…
Reservoir interactions of a vortex in a trapped 3D Bose-Einstein condensate
S. J. Rooney, A. J. Allen, U. Zülicke +2
We simulate the dissipative evolution of a vortex in a trapped finite-temperature dilute-gas Bose-Einstein condensate using first-principles open-systems theory. Simulations of the…
A quantum storm in a teacup
N. G. Parker, A. J. Allen, C. F. Barenghi +1
The past decade has seen atomic Bose-Einstein condensates emerge as a promising prototype system to explore the quantum mechanical form of turbulence, buoyed by a powerful experime…
Twisted unwinding of multi-charged quantum vortex and generation of turbulence in atomic Bose-Einstein condensates
G. D. Telles, P. E. S. Tavares, A. R. Fritsch +5
We report the observation of the twisted decay of quadruply charged vortices in an atomic Bose-Einstein condensate. Supporting numerical simulations show that the singly-charged vo…
Classical-like wakes past elliptical obstacles in atomic Bose-Einstein condensates
G. W. Stagg, A. J. Allen, C. F. Barenghi +1
We reinvestigate numerically the classic problem of two-dimensional superfluid flow past an obstacle. Taking the obstacle to be elongated (perpendicular to the flow), rather than t…
Generation and Decay of Two-Dimensional Quantum Turbulence in a Trapped Bose-Einstein Condensate
G. W. Stagg, A. J. Allen, N. G. Parker +1
In a recent experiment, Kwon et. al (arXiv:1403.4658 [cond-mat.quant-gas]) generated a disordered state of quantum vortices by translating an oblate Bose-Einstein condensate past a…
Vortex reconnections in atomic condensates at finite temperature
A. J. Allen, S. Zuccher, M. Caliari +3
The study of vortex reconnections is an essential ingredient of understanding superfluid turbulence, a phenomenon recently also reported in trapped atomic Bose-Einstein condensates…
Evaporative cooling of cold atoms at surfaces
J. Märkle, A. J. Allen, P. Federsel +5
We theoretically investigate the evaporative cooling of cold rubidium atoms that are brought close to a solid surface. The dynamics of the atom cloud are described by coupling a di…
Isotropic vortex tangles in trapped atomic Bose-Einstein condensates via laser stirring
A. J. Allen, N. G. Parker, N. P. Proukakis +1
The generation of isotropic vortex configurations in trapped atomic Bose-Einstein condensates offers a platform to elucidate quantum turbulence on mesoscopic scales. We demonstrate…
Quantum turbulence in atomic Bose-Einstein condensates
A. J. Allen, N. G. Parker, N. P. Proukakis +1
Weakly interacting, dilute atomic Bose-Einstein condensates (BECs) have proved to be an attractive context for the study of nonlinear dynamics and quantum effects at the macroscopi…
Observable Vortex Properties in Finite Temperature Bose Gases
A. J. Allen, E. Zaremba, C. F. Barenghi +1
We study the dynamics of vortices in finite temperature atomic Bose-Einstein condensates, focussing on decay rates, precession frequencies and core brightness, motivated by a recen…
A Dynamical Self-Consistent Finite Temperature Kinetic Theory: The ZNG Scheme
A. J. Allen, C. F. Barenghi, N. P. Proukakis +1
We review a self-consistent scheme for modelling trapped weakly-interacting quantum gases at temperatures where the condensate coexists with a significant thermal cloud. This metho…
Coherent cross-talk and parametric driving of matter-wave vortices
N. G. Parker, A. J. Allen, C. F. Barenghi +1
We show that the interaction between vortices and sound waves in atomic Bose-Einstein condensates can be elucidated in a double-well trap: with one vortex in each well, the sound e…
Long-range sound-mediated dark soliton interactions in trapped atomic condensates
A. J. Allen, D. P. Jackson, C. F. Barenghi +1
A long-range soliton interaction is discussed whereby two or more dark solitons interact in an inhomogeneous atomic condensate, modifying their respective dynamics via the exchange…