# Detecting circular polarisation in the stochastic gravitational-wave background from a first-order cosmological phase transition

@article{Ellis2020DetectingCP, title={Detecting circular polarisation in the stochastic gravitational-wave background from a first-order cosmological phase transition}, author={John Ellis and Malcolm Fairbairn and Marek Lewicki and Ville Vaskonen and Alastair Wickens}, journal={Journal of Cosmology and Astroparticle Physics}, year={2020}, volume={2020}, pages={032 - 032} }

We discuss the observability of circular polarisation of the stochastic gravitational-wave background (SGWB) generated by helical turbulence following a first-order cosmological phase transition, using a model that incorporates the effects of both direct and inverse energy cascades. We explore the strength of the gravitational-wave signal and the dependence of its polarisation on the helicity fraction, ζ*, the strength of the transition, α, the bubble size, R*, and the temperature, T*, at which…

## 11 Citations

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