2016/08/18 by Slava Emelyanov, Emelyanov, Slava
Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th)
paper · pdf · doi:10.48550/arxiv.1608.05318
openalex publication_date 2016/08/18 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
We study massless scalar theory with the quartic self-interacting term far away from and near to evaporating and spherically symmetric black hole. We propose a principle of how to define the physical notion of particle in curved space-time. Employing this definition, we compute one-loop correction to the self-energy and coupling constant of the scalar field near the horizon in the freely-falling frame. We find that the coupling constant becomes slightly stronger near to the horizon. We also find that the term in the 2-point function that is (partially) responsible for the black-hole evaporation corresponds to the sub-leading correction to the Feynman propagator whose pole structure is of the leading order.