Black holes as bubble nucleation sites

@article{Gregory2013BlackHA,
  title={Black holes as bubble nucleation sites},
  author={Ruth Gregory and Ian G. Moss and Benjamin Withers},
  journal={Journal of High Energy Physics},
  year={2013},
  volume={2014},
  pages={1-27}
}
A bstractWe consider the effect of inhomogeneities on the rate of false vacuum decay. Modelling the inhomogeneity by a black hole, we construct explicit Euclidean instantons which describe the nucleation of a bubble of true vacuum centred on the inhomogeneity. We find that inhomogeneity significantly enhances the nucleation rate over that of the Coleman-de Luccia instanton — the black hole acts as a nucleation site for the bubble. The effect is larger than previously believed due to the… 

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