Geometric secret sharing in a model of Hawking radiation

Understand

We consider a black hole in three dimensional AdS space entangled with an auxiliary radiation system.

• We model the microstates of the black hole in terms of a field theory living on an end of the world brane behind the horizon, and allow this field theory to itself have a holographic dual geometry.
• This geometry is also a black hole since entanglement of the microstates with the radiation leaves them in a mixed state.
• This "inception black hole" can be purified by entanglement through a wormhole with an auxiliary system which is naturally identified with the external radiation, giving a realization of the ER=EPR scenario.