Title :
Two-dimensional quantum turbulence in Bose-Einstein condensates
Author :
Anderson, Brian P. ; Neely, T.W. ; Bradley, A.S. ; Samson, E.C. ; Rooney, S.J. ; Wright, E.M. ; Law, K.J.H. ; Carretero-González, R. ; Kevrekidis, P.G. ; Davis, M.J.
Author_Institution :
Coll. of Opt. Sci., Univ. of Arizona, Tucson, AZ, USA
fDate :
Aug. 28 2011-Sept. 1 2011
Abstract :
We report the experimental generation of two-dimensional quantum turbulence in dilute-gas Bose-Einstein condensates by stirring the condensate with a laser beam, and the decay of the turbulent state to a large-scale flow in the form of a persistent current in a toroidal trap geometry. From numerical simulations of the stirring process, we characterize the dynamics of the quantized vortices in the condensate, and analyze the kinetic energy spectrum. Our observations are consistent with basic features of two-dimensional turbulence in classical incompressible fluids.
Keywords :
Bose-Einstein condensation; laser beams; quantum fluids; turbulence; vortices; 2D quantum turbulence; classical incompressible fluids; dilute gas Bose-Einstein condensates; kinetic energy spectrum; large scale flow; laser beams; quantized vortices; toroidal trap geometry; turbulent state; Educational institutions; Fluids; Kinetic energy; Laser beams; Mathematics; Quantum mechanics; USA Councils;
Conference_Titel :
Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4577-1939-4
DOI :
10.1109/IQEC-CLEO.2011.6194168
