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Farbod Rassouli, University of Nottingham
Friday 07 February 2025, 13:00-14:00
Unimodular JT gravity and de Sitter quantum cosmology
- 👤 Speaker: Farbod Rassouli, University of Nottingham
- 📅 Date & Time: Friday 07 February 2025, 13:00 - 14:00
- 📍 Venue: Potter room / https://cam-ac-uk.zoom.us/j/87235967698
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Xi Tong
Abstract
In this talk, I will show how a gauge-theoretic approach to Jackiw–Teitelboim (JT) gravity naturally yields a two-dimensional Henneaux–Teitelboim (HT) unimodular theory, applicable to both flat and curved spacetimes. Under a mini-superspace reduction, the Wheeler–DeWitt equation becomes a Schrödinger-like equation admitting a consistent, unitary quantum description. The resulting wavefunction describes a quantum distribution for the scale factor, illuminating cosmic expansion and contraction, and allowing topology change at a=0.
Series This talk is part of the DAMTP Friday GR Seminar series.
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