Presented By: Leinweber Center for Theoretical Physics
HET Brown Bag Seminar | 3d gravity and Teichmuller TQFT
Scott Collier (Princeton)
I will describe a proposal that relates AdS_3 quantum gravity to a topological quantum field theory known as ``Teichmuller TQFT.’’ This proposal makes precise the idea that pure AdS_3 quantum gravity is related to two copies of SL(2,R) Chern-Simons theory and resolves some well-known issues with this lore. I will argue that moreover this proposal provides a systematic and practical tool for the computation of partition functions of 3d gravity, and will describe how it elucidates the recent ensemble interpretation of semiclassical 3d gravity. (Based on work in progress with Lorenz Eberhardt and Mengyang Zhang.)
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