To go or not to go with the flow: Hawking radiation at strong coupling

Abstract

Abstract: We construct the gravitational dual of a one-parameter class of states of strongly coupled SU(N) N = 4 SYM at infinite N and asymptotic temperature T∞, on a fixed Schwarzschild black hole background with temperature TBH. The resulting bulk geometry is of the flowing type and allow us to measure Hawking radiation at strong coupling. The outgoing Hawking flux is a function of the dimensionless ratio τ ≡ T∞/TBH and appears to be non-monotonic in τ. At present, we have no field theory understanding for this behaviour.