Recently P. Etingof, E. Frenkel, and D. Kazhdan, following
earlier contributions by R. Langlands and J. Teschner, described an
“analytic” approach to the geometric Langlands correspondence, in
which the main ingredients are quantum states and...
One of the best laboratories to study strong-field gravity is
the inner 100s of kilometers around black holes and neutron stars
in binary systems with low-mass stars like our Sun. The X-ray light
curves of these systems show variability on...
Type IIB supergravity famously has a discrete duality group,
which is an exact symmetry of the full type IIB string theory. This
symmetry has potential quantum anomalies, which could render the
theory inconsistent. In this talk I will describe how...
We construct vacua of string theory in which all moduli are
stabilized and the magnitude of the cosmological constant is
exponentially small. The vacua are supersymmetric AdS_4
solutions in flux compactifications of type IIB string theory
on...
Recent advances in large-scale structure (LSS) theory have
opened up new avenues for probing fundamental physics with the
cosmic web. Future galaxy surveys will soon map the Universe with
unprecedented sub-percent precision. I will present tools...
We discuss the possible transition between string scale black
holes and self gravitating fundamental strings. We find evidence
for a smooth transition in the heterotic string case while in the
type II case they cannot be connected as classical...
