Probing of quantum turbulence with radiating vortex loops

TL;DR

This paper investigates how the statistical properties of vortex loops emitted from quantum turbulence can reveal underlying turbulence parameters, using a model based on Brownian vortex loops and comparing with numerical simulations.

Contribution

It introduces a model linking vortex loop statistics to quantum turbulence parameters and demonstrates its consistency with numerical data.

Findings

Vortex loop statistics can be expressed in terms of turbulence parameters.

The model aligns well with numerical simulation results.

This approach offers a new method to probe superfluid turbulence.

Abstract

The statistics of vortex loops emitted from the domain with quantum turbulence is studied. The investigation is performed on the supposition that the vortex loops have the Brownian or random walking structure with the generalized Wiener distribution. The main goal is to relate the properties of the emitted vortex loops with the parameters of quantum turbulence. The motivation of this work connected with recent studies, both numerical and experimental, on study of emitted vortex loops. This technique opens up new opportunities to probe superfluid turbulence. We demonstrated how the statistics of emitted loops is expressed in terms of the vortex tangle parameters and performed the comparison with numerical simulations.\newline PACS number(s): 67.25.dk, 47.37.+q