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arXiv · 2111.09541

Big Bang Nucleosynthesis Limits and Relic Gravitational Waves Detection Prospects

Tina Kahniashvili·Emma Clarke·Jonathan Stepp·Axel Brandenburg
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Abstract

We revisit the big bang nucleosynthesis (BBN) limits on primordial magnetic fields and/or turbulent motions accounting for the decaying nature of turbulent sources between the time of generation and BBN. This leads to larger estimates for the gravitational wave (GW) signal than previously expected. We address the detection prospects through space-based interferometers (for GWs generated around the electroweak energy scale) as well as pulsar timing arrays and astrometric missions (for GWs generated around the quantum chromodynamics energy scale).

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Tina Kahniashvili, Emma Clarke, Jonathan Stepp, Axel Brandenburg. 2021-11-18. Big Bang Nucleosynthesis Limits and Relic Gravitational Waves Detection Prospects. https://doi.org/10.1103/physrevlett.128.221301

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