Theory Seminar (High Energy/Cosmology)

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Events During the Week of November 3rd through November 9th, 2019

Monday, November 4th, 2019

No events scheduled

Tuesday, November 5th, 2019

No events scheduled

Wednesday, November 6th, 2019

Interiors for AdS Black Holes
Time: 4:00 pm - 5:00 pm
Place: 5280 Chamberlin Hall
Speaker: Sagar Lokhande, UIUC
Abstract: I will start with a pedagogical review of the modern formulation of Black Hole Information Paradox. I will explain how this reformulation casts doubt on the smoothness of the event horizon and on the existence of a local effective field theory near the horizon. I will make brief comments on two prominent approaches to the resolution of the Paradox. Then, I will specialize to black holes in AdS spacetime and discuss the construction of interior operators for typical black holes. I will propose specific thought experiments involving out-of-time-order correlators (OTOC) that provide evidence for the existence of such operators. The AdS/CFT correspondence, a celebrated duality derived from string theory, plays a crucial role in this investigation. Finally, if time permits, I will discuss some work-in-progress to construct the interior operators for more general, non-typical AdS black holes using the theory of operator algebras.
Host: Nicholas Orlofsky
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Thursday, November 7th, 2019

No events scheduled

Friday, November 8th, 2019

Black Holes to Algebraic Curves: Consequences of the Weak Gravity Conjecture
Time: 11:00 am - 12:30 pm
Place: Chamberlin 5280
Speaker: Tom Rudelius, Institute for Advanced Study, Princeton
Abstract: The Weak Gravity Conjecture holds that in any consistent theory of quantum gravity, gravity must be the weakest force. This simple proposition has surprisingly nontrivial physical consequences, which in the case of supersymmetric string/M-theory compactifications lead to nontrivial geometric consequences for Calabi-Yau manifolds. In this talk we will describe these conjectured geometric consequences in detail and show how they are realized in concrete examples, deriving new results about 5d supersymmetric black holes in the process.
Host: Gary Shiu
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