# Vinen turbulence via the decay of multicharged vortices in trapped atomic Bose-Einstein condensates

## TL;DR

This paper demonstrates a method to generate Vinen turbulence in trapped Bose-Einstein condensates through the decay of multicharged vortices, revealing vortex dynamics similar to superfluid helium turbulence.

## Contribution

It introduces a novel procedure to produce Vinen turbulence in BECs and characterizes its properties, bridging atomic condensates and superfluid helium turbulence.

## Key findings

- Vortex decay leads to tangled vortex states with Kelvin wave structures.
- Velocity statistics and energy spectra resemble those of superfluid helium Vinen turbulence.
- The disordered vortex state exhibits decay and correlation properties consistent with Vinen turbulence.

## Abstract

We investigate a procedure to generate turbulence in a trapped Bose-Einstein condensate which takes advantage of the decay of multicharged vortices. We show that the resulting singly-charged vortices twist around each other, intertwined in the shape of helical Kelvin waves, which collide and undergo vortex reconnections, creating a disordered vortex state. By examining the velocity statistics, the energy spectrum, the correlation functions and the temporal decay, and comparing these properties with the properties of ordinary turbulence and observations in superfluid helium, we conclude that this disordered vortex state can be identified with the `Vinen' regime of turbulence which has been discovered in the context of superfluid helium.