Information Transfer and Black Hole Evaporation via Traversable BTZ Wormholes

Understand

We study traversable wormholes by considering the duality between BTZ black holes and two-dimensional conformal field theory on the thermofield double state.

• The BTZ black holes can be rendered traversable by a negative energy shock wave.
• Following Gao, Jafferis and Wall [1], we show that the negative energy shock wave is dual to the infinite boost limit of a specific double trace deformation which couples the left and right CFTs.
• We spell out the mechanism of information transfer through traversable BTZ wormholes, treating the backreaction of the message as a positive energy shockwave.