Physics

Abstract: The detection of gravitational waves from inspiraling binary black holes by the LIGO/Virgo/KAGRA experiment has brought about the era of precision strong-gravity science. In this talk, I will discuss recent progress in uncovering the...

Abstract: In his celebrated proof of the weak cosmic censorship conjecture for the spherically symmetric Einstein-scalar field system, Christodoulou exploited the following property of that specific matter model: Naked singularities, when they arise...

Abstract: Theories comprehensively addressing the origin and robustness of the observed hierarchical structure of particle physics face significant challenges from the non-appearance of new particles, explicitly in LHC searches or virtually within...

Abstract: We develop a non-perturbative definition of RMT2: a generalization of random matrix theory that is compatible with the symmetries of two-dimensional conformal field theory. Given any random matrix ensemble, its n-point spectral...

Abstract: A recursive extension of $\phi^3$ amplitudes was discovered in 2019 by CEGM.  The first layer is a familiar integral over the positive moduli space $M^+_{0,n}$; the second layer is an integral over the moduli space of polygons in the...

Abstract: We construct the classical phase space of Jackiw-Teitelboim (JT) gravity with positive cosmological constant on spatial slices with circle topology. We identify solutions not previously discussed in the literature, and find the phase space...

Abstract: Historically, the synergy between physics and geometry, from the time of Archimedes and Newton to the era of Einstein, has repeatedly catalyzed breakthroughs in physics and mathematics. In this presentation, we will explore a new narrative...

The identity of dark matter is one of the biggest outstanding questions in astrophysics today. The smallest galaxies in the universe, dwarf galaxies, are powerful probes of its identity, as they are composed predominantly of dark matter.  However...

Abstract: We begin with understanding scalar color-ordered amplitudes via the kinematic mesh and the ABHY associahedron. There are three important aspects of this construction: its zeros, large deformations and splitting. The zeros will imply the...

Abstract: One of the best understood AdS/CFT incarnations relates tensionless k=1 strings on AdS3 to a symmetric product CFT2. I will discuss an exact duality between string theory on a spacetime which is not asymptotically AdS and a non-conformal...