## Gravitational Radiation from Primordial Helical MHD Turbulence

##### Authors
Kahniashvili, Tina
Gogoberidze, Grigol
Ratra, Bharat
##### Description
We consider gravitational waves (GWs) generated by primordial inverse-cascade helical magneto-hydrodynamical (MHD) turbulence produced by bubble collisions at the electroweak phase transitions (EWPT). Compared to the unmagnetized EWPT case, the spectrum of MHD-turbulence-generated GWs peaks at lower frequency with larger amplitude and can be detected by the proposed Laser Interferometer Space Antenna (LISA).
Comment: 4 pages, 1 figure, references and discussions added, figure modified, results unchanged, Phys. Rev. Lett. accepted
##### Keywords
Astrophysics, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology