Physics

Abstract: I will briefly review the factorisation of soft and collinear singularities in massless gauge theory amplitudes, and the structure of the soft anomalous dimension matrix. I will then discuss the implications of this factorisation for the...

Abstract: The spectrum of single-trace operators of order-one dimension, of holographic CFTs at strong coupling and large N, can be mapped to the spectrum of Kaluza-Klein (KK) excitations over the dual AdS supergravity solutions. Computing these KK...

Dark matter interactions with Standard Model particles can inject energy at early times, altering the standard evolution of the early universe. In particular, this energy injection can perturb the spectrum of the cosmic microwave background (CMB)...

Abstract: The density of states of a unitary conformal field theory is known to have a universal behavior at high energy. In two dimensions, this behavior is described by the Cardy formula. If the theory has symmetry, it is interesting to understand...

Abstract: I will present general arguments, based on fundamental physics principles, as to why we should expect a significant, horizon scale, departure from semiclassical gravity inside astrophysical black holes. Then, I will present a simple model...

Abstract:  In this talk, I will discuss the 2d SU(N) gauge theory coupled to an adjoint Majorana fermion using two approaches.  First, I will describe the computation of the spectrum at finite N using Discretized Light-Cone Quantization.  Then, for...

Abstract: The count of black hole microstates is typically obtained from a supersymmetric index in weakly coupled string theory. I will discuss the index in the strongly coupled theory, as a functional integral in N=2 supergravity in asymptotically...

Abstract: I will review and revisit the quantum entropy of supersymmetric black holes, which is defined as a gravitational path integral in the near-horizon AdS2 region.

This has been studied in the past using different methods: loop calculations...

The CMS and ATLAS experiments at the CERN LHC have the unique potential to (possibly) directly produce dark matter in proton-proton collisions and study its properties. Many searches for dark matter have been carried out, mostly focused on Mono-X...

Abstract: I will briefly review the recent developments on hidden structures of (A)dS scattering amplitudes, known as the differential representation. This representation manifests the flat-space structure of (A)dS scattering, telling us that the (A...