arXiv:gr-qc/0506056·v2·General Relativity and Quantum Cosmology
Dimensionally Regulated Graviton 1-Point Function in de Sitter
N. C. Tsamis (University of Crete)🇬🇷 · R. P. Woodard (University of Florida)🇺🇸
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.
Comments: 25 pages, LaTeX 2epsilon, uses Axodraw for one figure, revised to add some references