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The properties of quantum turbulence: the homogeneous isotropic case

Barenghi, CF (Newcastle University)
Monday 03 December 2012, 10:30-11:10

Seminar Room 1, Newton Institute


Quantum mechanics constrains the rotational motion of superfluid helium to discrete, vortex filaments of fixed circulation and atomic thickness (quantum vortices). A state of "quantum turbulence" can be easily created by stirring the liquid helium thermally or mechanically. In this talk I shall review recent experiments and numerical calculations which have revealed remarkable similarities between this form of turbulence and turbulence in ordinary fluids. Classical behaviour (such as the celebrated Kolmogorov energy spectrum) seems to arise from the coherence of many quanta of elementary circulation.


[pdf ] [avi ]


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