10–14 Oct 2022
EIMI
Europe/Moscow timezone
The conference will be held on October 10-14 of 2022 in Saint Petersburg.

Why does expectation value of stress energy tensor blow up near the event horizons?

13 Oct 2022, 17:35
25m
Room 1

Room 1

Session Talk Section D: Gravitation and cosmology Section D

Speaker

Kirill Bazarov (MIPT)

Description

We consider a massive scalar field theory on static four-dimensional space-times with horizons. We study the near horizon behaviour of the quantum expectation values of the stress--energy tensor operator for the thermal states with arbitrary temperatures. It turns out that the dependence of the expectation values on the temperature and tensor structure of the stress--energy tensor are different from the usual ones in the Minkowski space-time. Moreover, for non--canonical temperatures these expectation values are divergent on the horizons. We also show that the Wightman functions have additional infrared peculiarities near the horizons.

Author

Kirill Bazarov (MIPT)

Presentation materials