Hawking radiation and secularly growing loop corrections

Emil T. Akhmedov, Hadi Godazgar, and Fedor K. Popov
Phys. Rev. D 93, 024029 – Published 14 January 2016

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, behavior 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.

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  • Received 29 August 2015

DOI:https://doi.org/10.1103/PhysRevD.93.024029

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Emil T. Akhmedov1,2, Hadi Godazgar3, and Fedor K. Popov1,2,4

  • 1National Research University Higher School of Economics, International Laboratory of Representation Theory and Mathematical Physics, Vavilova 7, Moscow 117312, Russian Federation
  • 2Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya, 25, 117218 Moscow, Russian Federation
  • 3DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge CB3 0WA, United Kingdom
  • 4Moscow Institute of Physics and Technology, Institutskii per, 9, 141700 Dolgoprudny, Russian Federation

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Issue

Vol. 93, Iss. 2 — 15 January 2016

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