Hawking Radiation in the Ghost Condensate is Non-Thermal

Understand

We consider a Schwarzschild black hole immersed in a ghost condensate background.

• It is shown that the Hawking radiation in the quanta of small perturbations around this background is highly suppressed- in particular it is not given by a thermal spectrum.
• This result is in accord with observations that such black holes can be used to violate the generalized second law of thermodynamics, and thus cannot have a standard entropy/area relation.