Archive of IAS Friday High Energy Theory Seminars

Many experiments point to a significant transformation in the electronic state of the cuprate superconductors as their density is varied at very low temperature. The critical density is close to the “optimal” density where the superconductivity is...

The quartic coupling of the Standard Model Higgs nearly vanishes at a high energy scale. We show that this is explained by the parity symmetry and its spontaneous break down by the condensation of the parity partner of the Higgs. The parity can...

I’ll talk about the size-momentum correspondence and use it to study scrambling in a near-extremal charged black hole. It’s based on the paper arXiv:1804.04156v4.

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

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...

It is recently recognized that the global symmetry of a theory can be a nontrivial mixture of 0-form and 1-form global symmetries, called 2-group symmetry. A place where 2-group symmetry ubiquitously exists is 6d N=(1,0) little string theories. In...

I discuss a new family of four-dimensional CFTs, recently proposed by O.Gurdogan and myself, emerging as a double scaling limit of weakly coupled and strongly gamma-twisted N=4 SYM theory. These non-supersymmetric and non-unitary CFTs inherit the...

To what extent are deep learning models similar to complex physical systems? I will discuss analogies between aspects of deep learning, glassy systems, and Brownian motion. The results may help us to improve second-order optimization algorithms.

I will make some preliminary investigations to perturbativedynamics in AdS, more precisely the Mellin amplitudes associated to particle scattering, at loop level. With a focus on scalar effective theories, this analysis is fulfilled by introducing...