Exotic gravitational wave signatures from simultaneous phase transitions

  title={Exotic gravitational wave signatures from simultaneous phase transitions},
  author={D. Croon and G. White},
  journal={Journal of High Energy Physics},
A bstractWe demonstrate that the relic gravitational wave background from a multi-step phase transition may deviate from the simple sum of the single spectra, for phase transitions with similar nucleation temperatures TN. We demonstrate that the temperature range ΔT between the volume fractions f(T) = 0.1 and f(T) = 0.9 occupied by the vacuum bubbles can span ∼ 20 GeV. This allows for a situation in which phase transitions overlap, such that the later bubbles may nucleate both in high… Expand

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