R. Gregory
Black holes as bubble nucleation sites
Gregory, R.; Moss, I.; Withers, B.
Authors
I. Moss
B. Withers
Abstract
We 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 contributions to the action from conical singularities. For a sufficiently low initial mass, the original black hole is replaced by flat space during this process, as viewed by a single causal patch observer. Increasing the initial mass, we find a critical value above which a black hole remnant survives the process. This resulting black hole can have a higher mass than the original black hole, but always has a lower entropy. We compare the process to bubble-to-bubble transitions, where there is a semi-classical Lorentzian description in the WKB approximation.
Citation
Gregory, R., Moss, I., & Withers, B. (2014). Black holes as bubble nucleation sites. Journal of High Energy Physics, 2014(3), https://doi.org/10.1007/jhep03%282014%29081
Journal Article Type | Article |
---|---|
Publication Date | Mar 17, 2014 |
Deposit Date | Sep 11, 2014 |
Publicly Available Date | Sep 24, 2014 |
Journal | Journal of High Energy Physics |
Print ISSN | 1126-6708 |
Publisher | Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
Peer Reviewed | Peer Reviewed |
Volume | 2014 |
Issue | 3 |
DOI | https://doi.org/10.1007/jhep03%282014%29081 |
Keywords | Cosmology of theories beyond the SM, Black holes, Solitons monopoles and instantons. |
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Copyright Statement
© 2014 The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
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