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23 April 2024

» arxiv » 1309.1786

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Turbulence in Binary Bose-Einstein Condensates Generated by Deeply Non-Linear Rayleigh-Taylor and Kelvin-Helmholtz Instabilities
D. Kobyakov ; A. Bezett ; E. Lundh ; M. Marklund ; V. Bychkov ;
Date:	7 Sep 2013
Abstract:	Quantum turbulence (QT) generated by the Rayleigh-Taylor instability in ultracold 87Rb atoms at zero temperature is studied theoretically. We show that the quantum vortex tangle is qualitatively different from previously considered superfluids, which reveals novel deep relations between QT and classical turbulence. The present QT may be generated at arbitrarily small Mach numbers, which is a unique property not found in previously studied superfluids. By numerical solution of the coupled Gross-Pitaevskii equations we find for the first time that the Kolmogorov scaling law holds for the incompressible kinetic energy. We demonstrate that the phenomenon may be readily observed in the laboratory.
Source:	arXiv, 1309.1786
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