Hawking's black hole information paradox arises when the formation
and subsequent evaporation of a black hole is examined in the context
of quantum theory. It pits quantum mechanical unitarity against locality
in spacetime and highlights the incompatibility between the world view
offered by general relativity and that of quantum physics.
In a gravity
theory with a gauge theory dual, the paradox must be resolved in favor
of unitary evolution.
The challenge is then to implement unitarity on the
gravity side and a key issue, which is at the center of the recent debate
on firewalls, is whether this requires giving up the equivalence principle.
video link audio link
other video formals