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Seminar of the Department of Theoretical Physics, Steklov Mathematical Institute of RAS
November 2, 2016 14:00, Moscow, Steklov Mathematical Institute of RAS, Room 404 (8 Gubkina)
 


Hawking Radiation and Secularly Growing Loop Corrections

Fedor Popovabc

a National Research University "Higher School of Economics" (HSE), Moscow
b Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region
c L.D. Landau Institute for Theoretical Physics of Russian Academy of Sciences

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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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