Firewalls in AdS/CFT

Understand

Several recent papers argue against firewalls by relaxing the requirement for locality outside the stretched horizon.

• In the firewall argument, locality essentially serves the purpose of ensuring that the degrees of freedom required for infall are those in the proximity of the black hole and not the ones in the early radiation.
• We make the firewall argument sharper by utilizing the AdS/CFT framework and claim that the firewall argument essentially states that the dual to a thermal state in the CFT is a firewall.