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

fYear

2011

fDate

Aug. 28 2011-Sept. 1 2011

Firstpage

1071

Lastpage

1071

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IQEC-CLEO.2011.6194168

Filename

6194168