Thermal decay of planar Jones-Roberts solitons

NA Krause, AS Bradley - Physical Review A, 2024 - APS
Homogeneous planar superfluids exhibit a range of low-energy excitations that also appear
in highly excited states like superfluid turbulence. In dilute gas Bose-Einstein condensates …

Minimum critical velocity of a Gaussian obstacle in a Bose-Einstein condensate

H Kwak, JH Jung, Y Shin - Physical Review A, 2023 - APS
When a superfluid flows past an obstacle, quantized vortices can be created in the wake
above a certain critical velocity. In the experiment by Kwon et al.[Phys. Rev. A 91, 053615 …

Spectral analysis for compressible quantum fluids

AS Bradley, RK Kumar, S Pal, X Yu - Physical Review A, 2022 - APS
Turbulent fluid dynamics typically involves excitations on many different length scales.
Classical incompressible fluids can be cleanly represented in Fourier space enabling …

Synthetic superfluid chemistry with vortex-trapped quantum impurities

M Edmonds, M Eto, M Nitta - Physical Review Research, 2021 - APS
We explore the effect of using two-dimensional matter-wave vortices to confine an ensemble
of bosonic quantum impurities. This is modeled theoretically using a mass-imbalanced …

Breaking of Josephson junction oscillations and onset of quantum turbulence in Bose–Einstein condensates

A Griffin, S Nazarenko, D Proment - Journal of Physics A …, 2020 - iopscience.iop.org
We analyse the formation and the dynamics of quantum turbulence in a two-dimensional
Bose–Einstein condensate with a Josephson junction barrier modeled using the Gross …

Vortex pairs and dipoles on closed surfaces

B Gustafsson - Journal of Nonlinear Science, 2022 - Springer
We set up general equations of motion for point vortex systems on closed Riemannian
surfaces, allowing for the case that the sum of vorticities is not zero and there hence must be …

Neutral vortex necklace in a trapped planar superfluid

MM Cawte, MT Reeves, AS Bradley - Journal of low temperature physics, 2021 - Springer
We study quantum vortex states consisting of a ring of vortices with alternating sign, in a
homogeneous superfluid confined to a circular domain. We find an exact stationary solution …

Dissipation of a dark soliton in a trapped BEC

E Xu - 2022 - ourarchive.otago.ac.nz
Abstract The stochastic projected Gross-Pitaevskii equation (SPGPE) is a finite temperature
theory of Bose-Einstein condensate (BEC) dynamics. It utilizes C-field techniques, which …

Feedforward Optimisation of Optical Trap** Potentials for Ultracold Atoms

G Gauthier, TA Bell, M Baker… - 2020 Conference on …, 2020 - ieeexplore.ieee.org
Feedforward Optimisation of Optical Trap** Potentials for Ultracold Atoms Page 1
Feedforward Optimisation of Optical Trap** Potentials for Ultracold Atoms Guillaume …

Configuring BECs with Digital Micromirror Devices

G Guillaume, G Guillaume - Transport and Turbulence in Quasi-Uniform …, 2020 - Springer
Programmable spatial light modulators (SLMs) have significantly advanced the configurable
optical trap** of particles. Often, these devices are utilized in the Fourier plane of an …