Primordial black hole formation by vacuum bubbles

  title={Primordial black hole formation by vacuum bubbles},
  author={Heling Deng and Alexander Vilenkin},
  journal={Journal of Cosmology and Astroparticle Physics},
  pages={044 - 044}
Vacuum bubbles may nucleate during the inflationary epoch and expand, reaching relativistic speeds. After inflation ends, the bubbles are quickly slowed down, transferring their momentum to a shock wave that propagates outwards in the radiation background. The ultimate fate of the bubble depends on its size. Bubbles smaller than certain critical size collapse to ordinary black holes, while in the supercritical case the bubble interior inflates, forming a baby universe, which is connected to the… 

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  • Heling Deng
  • Physics
    Journal of Cosmology and Astroparticle Physics
  • 2020
Primordial bubbles that possibly nucleate through quantum tunneling during inflation in a multi-dimensional potential might have left some relic detectable at the present time. These bubbles turn

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