## High Energy Theory Events

#### Fall 2022

##### Celestial Amplitudes from Flat Space Limits of AdS/Witten Diagrams

Speaker: Ana Raclariu (Perimeter Institute)Host: Aritra Saha

The search for pragmatic observables of quantum gravity remains at the forefront of fundamental physics research. A large set of ideas collectively known as the gauge-gravity duality have proven fruitful in tackling this problem. While such a duality is believed to universally govern gravitational theories, its nature in theories of [...]##### Type IIB flux Compactifications with h^{1,1}=0

Speaker: Timm Wrase (Lehigh University)Host: Katrin Becker

I revisit type IIB flux compactifications that are mirror dual to type IIA on rigid Calabi-Yau manifolds. We found a variety of interesting new solutions, like infinite families of Minkowski vacua and infinite families of AdS_4 solutions with arbitrarily large numbers of spacetime filling D3 branes. I will discuss how [...]##### Trivially-Acting Symmetries as Topological Operators

Speaker: Thomas Vandermeulen (Texas A&M University)Host: Katrin Becker

The modern view of symmetries is that they should be regarded as topological operators which act on the states of a theory. We show that this formulation can be extended to trivially-acting symmetries, which are naturally described as a mix of line and point operators. This allows us to refine [...]##### Dynamics of Spinning Binaries From an Effective Field Theory Perspective

Speaker: Radu Roiban (Penn State University)Host: Ergin Sezgin

The general relativistic two-body dynamics is a subject of great theoretical and practical interest in light of the ongoing observations of gravitational waves by the LIGO/Virgo observatories. In recent years the classical limit of quantum scattering amplitudes provided a means to establish the state of the art in the weak-field [...]##### TBD

Speaker: Andreas Helset (California Institute of Technology)Host: Haoyu Zhang

##### TBD

Speaker: Michael Gutperle (University of California, Los Angeles)Host: Gabriel Larios