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arXiv · 1403.0896

Representing the Graviton Self-Energy on de Sitter Background

Katie E. Leonard·Sohyun Park·Tomislav Prokopec·R. P. Woodard
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Abstract

We derive a noncovariant but simple representation for the self-energy of a conformally transformed graviton field on the cosmological patch of de Sitter. Our representation involves four structure functions, as opposed to the two that would be necessary for a manifestly de Sitter invariant representation. We work out what the four structure functions are for the one loop correction due to a massless, minimally coupled scalar. And we employ the result to work out what happens to dynamical gravitons.

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Katie E. Leonard, Sohyun Park, Tomislav Prokopec, R. P. Woodard. 2014-07-17. Representing the Graviton Self-Energy on de Sitter Background. https://doi.org/10.1103/physrevd.90.024032

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