Physics

Four-dimensional N=2 supersymmetric and superconformal quantum field theories take part in various 4d/2d correspondences, which map computations of certain protected data of the four-dimensional theory to problems in two-dimensional models. In this...

We discuss the operator content of an asymptotic dS universe, using as an example the Vasiliev theory of massless interacting higher spin particles in a dS vacuum.

We will study the entanglement structure of states in Chern-Simons (CS) theory obtained by performing the Euclidean path-integral on certain highly non-trivial 3-manifolds, namely link complements in S^3. This will allow us to assign an entanglement...

We present recent developments in F-theory compactifications and focus on advances in constructions of globally consistent F-theory compactifications with Abelian and discrete gauge symmetries, emphasizing technical advances and insights into higher...

The analytic bootstrap has revealed universal constraints and structures in higher dimensional CFTs which relate causality, positive energy conditions, and large spin subsectors of the theory. I will present recent work extending the study of the...

A physical system is stable if its Hamiltonian is bounded below, so that we can define a positive notion of "energy" relative to the ground state. But what about the local energy density - can that be negative? I will provide an elegant derivation...

I will demonstrate presence of a vanishing momentum unstable quasi-normal mode in a certain class of asymptotically AdS black brane solutions and present the fully backreacted time evolution of the system resulting from this instability. I will...

I will describe some recent work studying proposals for computational complexity in holographic theories. I will discuss properties of the new gravitational observables and of complexity in the boundary theory.

In this talk, I will give an answer to the question “which QFT states holographically describe the emergence of semiclassical (conformal) geometry?” via a new construct in QFT: the causal density matrix. This new construct relies on the “lightcone...