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Polarized Cosmological Gravitational Waves from Primordial Helical Turbulence

Tina Kahniashvili·Grigol Gogoberidze·Bharat Ratra·;
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Abstract

We show that helical turbulence produced during a first-order phase transition generates circularly polarized cosmological gravitational waves (GWs). The characteristic frequency of these GWs for an extreme case of the phase transition model is around $10^{-3}$ --- $10^{-2}$ Hz with an energy density parameter as high as $10^{-12}$ --- $10^{-11}$. The possibility of detection is briefly discussed.

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BibTeXRIS

Tina Kahniashvili, Grigol Gogoberidze, Bharat Ratra, ;. 2005-09-29. Polarized Cosmological Gravitational Waves from Primordial Helical Turbulence. https://doi.org/10.1103/physrevlett.95.151301

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