Hawking radiation and secularly growing loop corrections
High Energy Physics - Theory
2016-01-20 v2 General Relativity and Quantum Cosmology
Abstract
We study the expectation value of the energy momentum tensor during thin shell collapse for a massive, real, scalar field theory. At tree-level, we find thermal, Hawking-type, behaviour for the energy flux. Using the Schwinger-Keldysh technique, we calculate two-loop corrections to the tree-level correlation functions and show that they exhibit secular growth, suggesting the breakdown of the perturbation theory.
Cite
@article{arxiv.1508.07500,
title = {Hawking radiation and secularly growing loop corrections},
author = {Emil T. Akhmedov and Hadi Godazgar and Fedor K. Popov},
journal= {arXiv preprint arXiv:1508.07500},
year = {2016}
}
Comments
28 pages, but general physical explanation is given in the introduction; Final version that is going to appear in PRD