Dimensionally Regulated Graviton 1-Point Function in de Sitter

Abstract

We use dimensional regularization to compute the 1PI 1-point function of quantum gravity at one loop order in a locally de Sitter background. As with other computations, the result is a finite constant at this order. It corresponds to a small positive renormalization of the cosmological constant.

arXiv comment25 pages, LaTeX 2epsilon, uses Axodraw for one figure, revised to add some references

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