Turbulence in binary Bose-Einstein condensates generated by highly nonlinear Rayleigh-Taylor and Kelvin-Helmholtz instabilities
Artikel i vetenskaplig tidskrift, 2014

Quantum turbulence (QT) generated by the Rayleigh-Taylor instability in binary immiscible ultracold Rb-87 atoms at zero temperature is studied theoretically. We show that the quantum vortex tangle is qualitatively different from previously considered superfluids, which reveals 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 that the Kolmogorov scaling law holds for the incompressible kinetic energy. We demonstrate that the phenomenon may be observed in the laboratory.

QUANTUM TURBULENCE

VORTEX STRUCTURES

DYNAMICS

SUPERFLUID TURBULENCE

Författare

D. Kobyakov

A. Bezett

E. Lundh

Mattias Marklund

Chalmers, Teknisk fysik, Kondenserade materiens teori

V. Bychkov

Physical Review A - Atomic, Molecular, and Optical Physics

1050-2947 (ISSN) 1094-1622 (eISSN)

Vol. 89 1

Ämneskategorier

Atom- och molekylfysik och optik

Den kondenserade materiens fysik

DOI

10.1103/PhysRevA.89.013631

Mer information

Skapat

2017-10-08