Holography of AdS vacuum bubbles

Understand

We consider the fate of AdS vacua connected by tunneling events.

• A precise holographic dual of thin-walled Coleman--de Luccia bounces is proposed in terms of Fubini instantons in an unstable CFT.
• This proposal is backed by several qualitative and quantitative checks, including the precise calculation of the instanton action appearing in evaluating the decay rate.
• Big crunches manifest themselves as time dependent processes which reach the boundary of field space in a finite time.