41 citations · 46 across the 7 of their papers we have counts for
5 papers · 1 filter
The Stringy Photon Sphere
Ahmed Sheta
The S matrix on an asymptotically-flat Schwarzschild black hole is studied as a function of position on . We derive the lightcone singularities that arise in the S mat…
Self-Dual Yang-Mills in AdS
Simon Heuveline, Romain Ruzziconi, Ahmed Sheta +1
Quantum Yang-Mills theory in Euclidean AdS with Neumann boundary conditions is studied as a function of the complex couplings $\frac{1}{g_\pm^2} \equiv \frac{1}{g^2}\mp \frac{i…
Soft Algebras in AdS from Light Ray Operators in CFT
Ahmed Sheta, Andrew Strominger, Adam Tropper +1
Flat Minkowski space (M) and AdS can both be conformally mapped to the Einstein cylinder. The maps may be judiciously chosen so that some null generators of the $\mathcal{I…
pp-Waves and the Hidden Symmetries of Black Hole Quasinormal Modes
Daniel Kapec, Ahmed Sheta
There are two interesting classes of trapped null geodesics in any black hole spacetime: those that lie on the photon ring and those that generate the horizon. Recent work introduc…
Logarithmic Corrections to Kerr Thermodynamics
Daniel Kapec, Ahmed Sheta, Andrew Strominger +1
Recent work has shown that loop corrections from massless particles generate corrections to black hole entropy which dominate the thermodynamic…