374 citations · 1.8k across the 21 of their papers we have counts for
23 papers
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…
Quasinormal Corrections to Near-Extremal Black Hole Thermodynamics
Daniel Kapec, Y. T. Albert Law, Chiara Toldo
Recent work on the quantum mechanics of near-extremal non-supersymmetric black holes has identified a characteristic scaling of the low temperature black hole partition f…
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…
Photon Rings Around Warped Black Holes
Daniel Kapec, Alexandru Lupsasca, Andrew Strominger
The black hole photon ring is a prime target for upcoming space-based VLBI missions seeking to image the fine structure of astrophysical black holes. The classical Lyapunov exponen…
Integrable Field Theories and Their CCFT Duals
Daniel Kapec, Adam Tropper
We compute the Mellin transforms of various two-dimensional integrable -matrices, providing the first explicit, non-perturbative realizations of celestial CFT. In two dimensions…
Soft Particles and Infinite-Dimensional Geometry
Daniel Kapec
In the sigma model, soft insertions of moduli scalars enact parallel transport of -matrix elements about the finite-dimensional moduli space of vacua, and the antisymmetric doub…