We study closed universes in simple models of two dimensional gravity, such as Jackiw-Teiteilboim (JT) gravity coupled to matter, and a toy topological model that captures the key features of the former. We find there is a stark contrast between the perturbative and non-perturbative aspects of the theory. Semi-classically there is rich physics. However, when non-perturbative effects are included we see the puzzling feature that there is a unique closed universe state in each theory.
| Building: | Randall Laboratory |
|---|---|
| Event Type: | Lecture / Discussion |
| Tags: | brown bag, Brown Bag Seminar, Physics |
| Source: | Happening @ Michigan from Leinweber Center for Theoretical Physics, Department of Physics, HET Brown Bag Series, Leinweber Center for Theoretical Physics Seminars, Leinweber Center for Theoretical Physics Brown Bag Seminars |
Events
Featured
Apr
12
Saturday Morning Physics | VanLoo Family SMP: Graduate Student Research Presentations
Otávio Aves and Emilie LaVoie-Ingrahm (U-M Physics), Jared Mitchell (U-M Applied Physics)
10:30 AM
170 & 182 Auditoriums
Weiser Hall
Upcoming
Mar
21
HET Seminar | The Full Spectrum of Thermal Dark Matter
Eric Kuflik (Hebrew U/Cornell)
3:00 PM
3481
Randall Laboratory
Mar
25
CM-AMO Seminar | Visualization of Tunable Electronic Structure of Van der Waals Heterostructures
Jyoti Katoch (Carnegie Mellon University)
4:00 PM
340
West Hall
Mar
26
Brown Bag Seminar | Comments on closed universes
Ying Zhao (MIT)
12:00 PM
3481
Randall Laboratory
