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NCUEIR > College of Science > Department of Physics > Periodical Articles > Item 987654321/14844

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/14844

Title:	Two-dimensional Quantum Turbulence in a Nonuniform Bose-Einstein Condensate
Authors:	Horng, T. L.;Hsueh, C. H.;Su, S. W.;Kao, Y. M.;Gou, Shih-Chuan
Contributors:	物理學系
Date:	2009
Issue Date:	2012-12-10T02:27:26Z
Publisher:	The American Physical Society
Abstract:	We investigate the dynamics of turbulent flow in a two-dimensional trapped Bose-Einstein condensate by solving the Gross-Pitaevskii equation numerically. The development of the quantum turbulence is activated by the disruption of an initially embedded vortex quadrupole. By calculating the incompressible kinetic-energy spectrum of the superflow, we conclude that this quantum turbulent state is characterized by the Kolmogorov-Saffman scaling law in the wave-number space. Our study predicts the coexistence of two subinertial ranges responsible for the energy cascade and enstrophy cascade in this prototype of two-dimensional quantum turbulence.
Relation:	Physical Review A., 80(2): 023618
Appears in Collections:	[Department of Physics] Periodical Articles

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