Numerical simulations of acoustically generated gravitational waves at a first order phase transition

@article{Hindmarsh2015NumericalSO,
  title={Numerical simulations of acoustically generated gravitational waves at a first order phase transition},
  author={M. Hindmarsh and S. Huber and K. Rummukainen and D. J. Weir},
  journal={Physical Review D},
  year={2015},
  volume={92},
  pages={123009}
}
  • M. Hindmarsh, S. Huber, +1 author D. J. Weir
  • Published 2015
  • Physics
  • Physical Review D
  • We present details of numerical simulations of the gravitational radiation produced by a first order thermal phase transition in the early universe. We confirm that the dominant source of gravitational waves is sound waves generated by the expanding bubbles of the low-temperature phase. We demonstrate that the sound waves have a power spectrum with a power-law form between the scales set by the average bubble separation (which sets the length scale of the fluid flow Lf) and the bubble wall… CONTINUE READING
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