Momentum creation by vortices in 3He experiments as a model of primordial baryogenesis

TL;DR

This paper demonstrates that superfluid 3He experiments can model primordial baryogenesis by showing vortex-induced momentum creation, providing insights into baryon asymmetry formation in the early universe.

Contribution

It establishes a laboratory analogy between vortex-induced momentum in superfluid 3He and baryogenesis in cosmic strings, linking condensed matter physics with cosmological phenomena.

Findings

Vortices in superfluid 3He create excitation momentum similar to baryogenesis.

Experimental results support the use of superfluid 3He as a model for early universe processes.

Provides a laboratory basis for chiral anomaly calculations related to baryon asymmetry.

Abstract

We show that recent 3He experiments at Manchester demonstrate the creation of excitation momentum (momentogenesis) by quantized vortices, a process analogous to baryogenesis within cosmic strings. Since superfluid 3He is the most complex field theoretic system available in the laboratory, this experiment gives a firmer foundation to chiral anomaly calculations for baryogenesis on non-trivial backgrounds of the Higgs field such as cosmic strings.