6533b85dfe1ef96bd12bf2ce
RESEARCH PRODUCT
Late time approach to Hawking radiation: Terms beyond leading order
Paul R. AndersonAlessandro FabbriRaymond D. ClarkMichael R. R. Goodsubject
PhysicsHigh Energy Physics - Theory010308 nuclear & particles physicsWave packetAstrophysics::High Energy Astrophysical PhenomenaShell (structure)FOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)01 natural sciencesNull (physics)Power lawGeneral Relativity and Quantum CosmologyExponential functionBlack holeGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theory (hep-th)Quantum electrodynamics0103 physical sciencesStationary phase approximation010306 general physicsHawking radiationdescription
Black hole evaporation is studied using wave packets for the modes. These allow for approximate frequency and time resolution. The leading order late time behavior gives the well known Hawking radiation that is independent of how the black hole formed. The focus here is on the higher order terms and the rate at which they damp at late times. Some of these terms carry information about how the black hole formed. A general argument is given which shows that the damping is significantly slower (power law) than what might be naively expected from a stationary phase approximation (exponential). This result is verified by numerical calculations in the cases of 2D and 4D black holes that form from the collapse of a null shell.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-06-04 |