UV And IR Effects On Hawking Radiation
High Energy Physics - Theory
2023-03-22 v3 General Relativity and Quantum Cosmology
Abstract
We study the time-dependence of Hawking radiation for a black hole in the Unruh vacuum, and find that it is not robust against certain UV and IR effects. If there is a UV cutoff at the Planck scale, Hawking radiation is turned off after the scrambling time. In the absence of a UV cutoff, Hawking radiation is sensitive to the IR cutoff through a UV/IR connection due to higher-derivative interactions in the effective theory. Furthermore, higher-derivative interactions with the background contribute to a large amplitude of particle creation that changes Hawking radiation. This unexpected large effect is related to a peculiar feature of the Hawking particle wave packets.
Keywords
Cite
@article{arxiv.2207.07122,
title = {UV And IR Effects On Hawking Radiation},
author = {Pei-Ming Ho and Hikaru Kawai},
journal= {arXiv preprint arXiv:2207.07122},
year = {2023}
}
Comments
35 pages, 5 figures, references added, minor modification