Kavli Affiliate: Misao Sasaki
| First 5 Authors: Kaloian D. Lozanov, Misao Sasaki, , ,
| Summary:
We consider a scalar field theory with a Minkowski false vacuum and an
unbounded (or very deep) true vacuum. We show compelling evidence that an AdS
bubble of vanishing total energy, embedded in asymptotically flat spacetime,
generically undergoes a spherical collapse which leads to a space-like
curvature singularity after the formation of trapped surfaces and apparent
horizons. The crunch singularity, which is hided behind an apparent horizon,
occurs before the true vacuum is reached, and the existence of a lower bound of
the scalar field potential is not a necessary condition for its formation.
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