Can we Measure Superflow on Quenching He4?

TL;DR

This paper discusses the possibility of measuring superflow in quenched helium-4, building on Zurek's theoretical framework, despite experimental challenges in vortex density measurements.

Contribution

It extends Zurek's argument to the measurement of superflow in helium-4 during quenching, proposing its validity despite conflicting vortex density data.

Findings

Zurek's theory supports measurable superflow in quenched helium-4.

Vortex density experiments currently do not support the lamda-transition picture.

The paper suggests superflow measurement remains a valid approach.

Abstract

Zurek has provided a simple picture for the onset of the lamda-transition in He4, not currently supported by vortex density experiments. However, we argue that the seemingly similar argument by Zurek that superflow in an annulus of He4 at the quench will be measurable is still valid.