Hawking radiation and secularly growing loop corrections

Emil T. Akhmedov; Fedor K. Popov; Hadi Godazgar

arxiv: 1508.07500 · v2 · pith:6PT4YQ32new · submitted 2015-08-29 · ✦ hep-th · gr-qc

Hawking radiation and secularly growing loop corrections

Emil T. Akhmedov , Hadi Godazgar , Fedor K. Popov This is my paper

classification ✦ hep-th gr-qc

keywords correctionsenergytheorytree-levelbehaviourbreakdowncalculatecollapse

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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.

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