Temperatures of renormalizable quantum field theories in curved spacetime
General Relativity and Quantum Cosmology
2018-11-01 v2
Abstract
In this paper we compute the temperature registered by an Unruh-DeWitt detector coupled to a Hadamard renormalizable quantum field in an arbitrary state, moving along an accelerated trajectory in a curved spacetime. For a massless and conformally invariant field, the generalized expression for the temperature is given by the quadratic sum of the 4-acceleration, Raychaudhuri scalar, and renormalized field polarization. We can further find a novel constraint on the renormalized quantum field polarization in relativistic systems that are in global thermal equilibrium.
Keywords
Cite
@article{arxiv.1611.06619,
title = {Temperatures of renormalizable quantum field theories in curved spacetime},
author = {Morgan H. Lynch and Niayesh Afshordi},
journal= {arXiv preprint arXiv:1611.06619},
year = {2018}
}
Comments
Accepted for publication in Classical and Quantum Gravity