Transparentizing Black Holes to Eternal Traversable Wormholes

Understand

We present the gravity description of evaporating black holes that end up with eternal traversable wormholes where every would-be behind horizon degree is available in asymptotic regions.

• The transition is explicitly realized by a time-dependent bulk solution in the two-dimensional Einstein-dilaton gravity.
• In this solution, the initial AdS$_2$ black hole is evolved into an eternal traversable wormhole free of any singularity, which may be dubbed as transparentization of black holes to eternal traversable wormholes.
• The bulk construction completely matches with the boundary description governed by the Schwarzian boundary theory.