190 citations · 556 across the 9 of their papers we have counts for
9 papers · 1 filter
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…
Low-Dimensional Stochastic Projected Gross-Pitaevskii Equation
A. S. Bradley, S. J. Rooney, R. G. McDonald
We present reduced-dimensional stochastic projected Gross-Pitaevskii equations describing regimes of confinement and temperature where a 1D or 2D superfluid is immersed in a 3D the…
Splitting bright matter-wave solitons on narrow potential barriers: quantum to classical transition and applications to interferometry
J. L. Helm, S. J. Rooney, Christoph Weiss +1
We study bright solitons in the Gross-Pitaevskii equation as they are split and recombined in a low energy system. We present new analytic results determining the general region in…
Numerical method for the stochastic projected Gross-Pitaevskii equation
S. J. Rooney, P. B. Blakie, A. S. Bradley
We present a method for solving the stochastic projected Gross-Pitaevskii equation (SPGPE) for a three-dimensional Bose gas in a harmonic-oscillator trapping potential. The SPGPE c…
The stochastic projected Gross-Pitaevskii equation
S. J. Rooney, P. B. Blakie, A. S. Bradley
We have achieved the first full implementation of the stochastic projected Gross-Pitaevskii equation for a three-dimensional trapped Bose gas at finite temperature. Our work advanc…
Persistent current formation in a high-temperature Bose-Einstein condensate: an experimental test for c-field theory
S. J. Rooney, T. W. Neely, B. P. Anderson +1
Experimental stirring of a toroidally trapped Bose-Einstein condensate at high temperature generates a disordered array of quantum vortices that decays via thermal dissipation to f…
Characteristics of Two-Dimensional Quantum Turbulence in a Compressible Superfluid
T. W. Neely, A. S. Bradley, E. C. Samson +7
Under suitable forcing a fluid exhibits turbulence, with characteristics strongly affected by the fluid's confining geometry. Here we study two-dimensional quantum turbulence in a…
Suppression of Kelvon-induced decay of quantized vortices in oblate Bose-Einstein Condensates
S. J. Rooney, P. B. Blakie, B. P. Anderson +1
We study the Kelvin mode excitations on a vortex line in a three-dimensional trapped Bose-Einstein condensate at finite temperature. Our stochastic Gross-Pitaevskii simulations sho…
Decay of a quantum vortex: test of non-equilibrium theories for warm Bose-Einstein condensates
S. J. Rooney, A. S. Bradley, P. B. Blakie
The decay of a vortex from a non-rotating high temperature Bose-Einstein condensate (BEC) is modeled using the stochastic projected Gross-Pitaevskii equation (SPGPE). In order to e…