

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 Popov^{abc} ^{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 treelevel, we find thermal, Hawkingtype, behavior for the energy flux. Using the SchwingerKeldysh technique, we calculate twoloop corrections to the treelevel correlation functions and show that they exhibit secular growth, suggesting the breakdown of the perturbation theory.

