Lookup NU author(s): Dr Angela White,
Professor Nikolaos Proukakis,
Professor Carlo Barenghi
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© Published under licence by IOP Publishing Ltd. We stir vortices into a trapped quasi two-dimensional atomic Bose-Einstein condensate by moving three laser stirrers. We apply stirring protocols introduced by Boyland et al. (2000), that efficiently build in topological chaos in classical fluids and are classified as Pseudo-Anosov stirring protocols. These are compared to their inefficient mixing counterparts, finite-order stirring protocols. We investigate if inefficient stirring protocols result in a more clustered distribution of vortices. The efficiency with which vortices are 'mixed' or distributed in a condensate is important for investigating dynamics of continuously forced quantum turbulence and the existence of the inverse cascade in turbulent two-dimensional superfluids.
Author(s): White AC, Proukakis NP, Barenghi CF
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Quantised Flux in Tightly Knotted and Linked Systems
Year of Conference: 2012
Online publication date: 20/10/2014
Date deposited: 31/08/2017
Publisher: Institute of Physics Publishing