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Quantum and classical turbulence: Alike or different?

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Topological Dynamics in the Physical and Biological Sciences

The question of how alike and different quantum and classical turbulence are will be addressed using simulations of anti-parallel vortex reconnection. The equations solved are: For quantum fluids the Gross-Pitaevskii equation and for classical turbulence the incompressible Navier-Stokes equation. For the two cases the initial attraction of the vortices, before the first reconnection, are quite similar. And for both, the final states are composed of a stack of vortex rings from which a -5/3 kinetic energy spectrum appears. However, almost everything in between is different, starting with the differences in the underlying physics of the circulation during reconnection. This presentation will describe these differences.

This talk is part of the Isaac Newton Institute Seminar Series series.

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