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arXiv · 2407.07864

The Third Structure Function

S. P. Miao·N. C. Tsamis·R. P. Woodard·B. Yesilyurt
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Abstract

We re-consider the graviton self-energy induced by a loop of massless, minimally coupled scalars on de Sitter background. On flat space background it can be represented as a sum of two tensor differential operators acting on scalar structure functions. On a general background these tensor differential operators can be constructed from the linearized Ricci scalar and the linearized Weyl tensor. However, in cosmology one requires a third contribution which we derive here.

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S. P. Miao, N. C. Tsamis, R. P. Woodard, B. Yesilyurt. 2024-07-10. The Third Structure Function. https://doi.org/10.1088/1361-6382%2Fadcfe9

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