Sound emission and irreversible dynamics during vortex reconnections in quantum fluids

Abstract: We study the irreversible dynamics of vortex reconnections in quantum fluids within the framework of the Gross–Pitaevskii model, a nonlinear Schroedinger-type equation. We quantitatively explain the time-asymmetry characterising the reconnection process by relating it to the emission of localised directional sound pulse. Our theoretical results shed new light on energy transfer and turbulence in fluid mechanics and have the prospect of being tested in quantum fluid experiments.

mathematical physicsanalysis of PDEsdynamical systems

Audience: researchers in the topic

Waves in One World (WOW) series

Series comments: You may join the series by either emailing d.j.ratliff@lboro.ac.uk to join the series' mailing list or register here - www.smartsurvey.co.uk/s/BJSLKN/

We also welcome abstract submissions for the series, please do so here - forms.gle/T2erGYrbWvzAoEYd8