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arXiv · 1611.06619

Temperatures of renormalizable quantum field theories in curved spacetime

Morgan H. Lynch·Niayesh Afshordi
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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.

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Morgan H. Lynch, Niayesh Afshordi. 2018-10-31. Temperatures of renormalizable quantum field theories in curved spacetime. https://arxiv.org/abs/1611.06619

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