Gravitational Radiation from Primordial Helical MHD Turbulence
arXiv:0802.3524 · doi:10.1103/PhysRevLett.100.231301
Abstract
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).
4 pages, 1 figure, references and discussions added, figure modified, results unchanged, Phys. Rev. Lett. accepted