Assess feasibility of using the SQV in 3He-A as a laboratory model of a Big Bang transition from antispacetime

Ascertain whether a single-quantum vortex in the A phase of superfluid helium-3 can serve as a laboratory model for a Big Bang scenario characterized as a transition from antispacetime, accounting for effective tetrad gravity along the polar core and strong core flow that can entrain quasiparticles.

Background

The authors highlight that Weyl fermionic quasiparticles traversing from one A-phase orientation through the polar phase to the opposite orientation experience effective tetrad gravity, which has been suggested to simulate transitions to antispacetime.

Given the strong superflow channeled through the polar core that can entrain quasiparticles, they pose the broader question of whether the SQV in 3He-A can function as a controlled laboratory analogue for cosmological scenarios such as a Big Bang modeled as a transition from antispacetime.