Physics

Many quantities in the AdS/CFT correspondence, for example entanglement entropies, are defined up to a choice of UV cutoff. The cutoff can be chosen and adjusted depending on one's purposes; it represents a sort of gauge freedom. I will explain that...

Properties of CFT operators carrying some large global charge can be systematically computed in a 1/Q expansion by assuming that the corresponding states on the cylinderare described by a supefluid phase. In particular one can compute the spectrum...

After a brief review (suitable for physicists) of computational genomics and complex traits, I describe recent progress in this area.Using methods from Compressed Sensing (L1-penalized regression; Donoho-Tanner phase transition with noise) and the...

We study the Eigenstate Thermalization Hypothesis (ETH) in chaotic conformal field theories (CFTs) of arbitrary dimensions. Assuming local ETH, we compute the reduced density matrix of a ball-shaped subsystem of finite size in the infinite volume...

There seem to be no good examples of UV complete theories that have low-lying massive higher spin states isolated by a large gap, despite the relative ease of constructing effective field theories describing such states. We discuss constraints from...

I will review recent developments in the understanding of Lorentzian correlators in generic CFTs. I will then discuss two applications of these developments. The first one involves bounds on the OPE coefficients on the leading Regge trajectory. In...

We explain recent ideas that led to rapid progress on the dynamics of gauge theories in 2+1 dimensions. We discuss gauge theories with matter particles in the fundamental as well as in the adjoint representations. We make predictions for new phases...

We discuss how to obtain dynamics of semiclassical gravity in 3d AdS from the large central charge limit of irreducible representations of the conformal algebra of 2d CFTs, with a focus on black hole information loss and bulk reconstruction. We...

I will discuss a method to compute 1/N corrections in large N CFTs based on the Rayleigh-Schroedinger perturbation theory for the dilatation operator. I will apply the method to the simplest examples, i.e. subsectors of large-N CFTs defined by...

String field theory is the refined definition of string theory, formulated in the language of quantum field theory. Unlike the conventional Polyakov approach, it provides a well defined prescription for computing the scattering amplitudes in string...