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arXiv · 1510.03352

Quantum Scalar Corrections to the Gravitational Potentials on de Sitter Background

Sohyun Park·Tomislav Prokopec·R. P. Woodard
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Abstract

We employ the graviton self-energy induced by a massless, minimally coupled (MMC) scalar on de Sitter background to compute the quantum corrections to the gravitational potentials of a static point particle with a mass $M$. The Schwinger-Keldysh formalism is used to derive real and causal effective field equations. When evaluated at the one-loop order, the gravitational potentials exhibit a secular decrease in the observed gravitational coupling $G$. This can also be interpreted as a (time dependent) anti-screening of the mass $M$.

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Sohyun Park, Tomislav Prokopec, R. P. Woodard. 2015-10-12. Quantum Scalar Corrections to the Gravitational Potentials on de Sitter Background. https://doi.org/10.1007/jhep01(2016)074

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