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Résumé |
In this talk I will present our proposal for a mechanism that couples matter fields to three-dimensional de
Sitter quantum gravity. Our construction is based on the Chern-Simons formulation of three-dimensional
Euclidean gravity, and it centers on a collection of Wilson loops winding around Euclidean de Sitter space. We
coin this object a Wilson spool. To construct the spool, we build novel representations of su(2). To evaluate
the spool, we adapt and exploit several known exact results in Chern-Simons theory. Our proposal correctly
reproduces the one-loop determinant of a free massive scalar field on S^3 as G_N->0. Moreover, allowing for
quantum metric fluctuations, it can be systematically evaluated to any order in perturbation theory. |
