Backreaction of particle production on physical gravitons in the de Sitter space

Ion V. Vancea

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arXiv · 1902.02149

Backreaction of particle production on physical gravitons in the de Sitter space

Ion V. Vancea

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Abstract

We derive the effects of the scalar particle production on the physical graviton operator in the de Sitter space. Our analysis is done for the sub-horizon modes at large values of the conformal time. In this limit, we completely determine the correction to the scalar energy-momentum tensor at the first order in the WKB iteration. Also, we calculate the corresponding correction to the graviton operator for a single sub-horizon mode.

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Ion V. Vancea. 2019-02-06. Backreaction of particle production on physical gravitons in the de Sitter space. https://arxiv.org/abs/1902.02149

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