Physics

I will introduce the notion of the Swampland, first defined in 0509212/hep-th. I will then discuss a number of Swampland Conjectures, including "No Global Symmetries" (1011.5120/hep-th, 1810.05337/hep-th), the "Weak Gravity Conjecture" (0601001/hep...

In this talk, I will explain how to understand the symplectic structure of the gravitational phase space in AdS in terms of the quantum overlap in the holographically dual CFT. As an application, I will use this to study the boundary description of...

I report on progress in formulating eleven-dimensional supergravity in a framework in which four supersymmetries are manifest.

These were originally discovered by Sen (see hep-th/9808141, hep-th/9809111, hep-th/9904207, for example). Another interesting paper is by Kraus and Larsen, hep-th/0012198.
I will describe a new perspective based on anomalies.

We compute the local second variation of the von Neumann entropy of a region in theories with a gravity dual. For null variations our formula says that the diagonal part of the Quantum Null Energy Condition is saturated in every state, thus...

We study the quantum mechanics of 3-index Majorana fermions $\psi^abc$ governed by a quartic Hamiltonian with $O(N)^3$ symmetry. Similarly to the Sachdev-Ye-Kitaev model, this tensor model has a solvable large N limit dominated by the melonic...

I will give introduction to general integrability-based methods to study two-dimensional quantum field theories. The goal (which I don't think I will achieve) is to explain how to compute the boundary entropy (also known as "g-function"), which...

I will present a status report for the study of confining strings. First, I will focus on confining strings in massive adjoint two-dimensional QCD, where analytical progress is most straightforward to achieve. Then I will describe lessons learnt...

I will show how the $T\bar T$ deformation of a two-dimensional QFT is related to coupling this QFT to a certain gravitational theory. This theory provides a natural set of clocks and rods which allow to define and compute the partition function on a...