Events During the Week of July 23rd through July 30th, 2023
Monday, July 24th, 2023
- No events scheduled
Tuesday, July 25th, 2023
- No events scheduled
Wednesday, July 26th, 2023
- No events scheduled
Thursday, July 27th, 2023
- Summer Recess
- Time: 12:30 pm - 1:00 pm
- Place: Bascom Hill outside Birge
- Speaker: Sharon Kahn
- Abstract: Come take a break and play from 12:30-1 on Bascom Hill (outside of Birge)! Some of us will be walking up, leaving from the Charter St entrance ~12:25 – feel free to walk with us!
Cornhole, ladder toss, frisbee, juice boxes. . . .
Hope you’ll join us!
Friday, July 28th, 2023
- Theory Seminar (High Energy/Cosmology)
- Self-Similar Gravitational Dynamics, Singularities and Criticality in 2D
- Time: 2:00 pm - 3:00 pm
- Place: Chamberlin 5280
- Speaker: Upamanyu Moitra, ICTP
- Abstract: In the talk, I will discuss continuously self-similar gravitational dynamics in 1+1 spacetime dimensions. I will show how the assumption of self-similarity fixes the form of the two-dimensional theory, two classes of which are well-known in the literature. I will discuss some exotic static solutions and how inclusion of matter fields leads to non-trivial dynamics. I will argue for the occurrence of singularities based on a simple feature of differential equations. Time permitting, I will also discuss numerical work relating to dynamics of matter field collapse.