Physics

Abstract: Given a (1+1)D CFT which admits a continuous family of conformal boundary conditions, I will describe a way to define a 2-form connection in the space of conformal boundary conditions, in terms of OPE coefficients of boundary-condition...

Abstract: Drawing inspiration from AdS/CFT holography, I will discuss the idea that a static patch in de Sitter space admits a fundamental description based upon standard quantum mechanics. Taking a bottom-up perspective, I compute correlation...

Abstract: Atomically thin crystals form a vast family of 2D quantum materials, with only a few well studied. Engineered structures like stacked 2D crystals and moiré superlattices offer exceptionally rich and highly tunable platforms for exploring...

Abstract: This talk will discuss the simplest model of neural nets, the multilayer perceptron. We will prove the basic properties of this model, and discuss three particular areas where physicists, especially high energy theorists, can contribute to...

Abstract: Symmetries play a crucial role in both quantum field theory and quantum many-body systems on the lattice. One key topological feature that a global symmetry can have is a "('t Hooft) anomaly". But how exactly should an anomaly be defined...

Abstract: Classical" accretion disks are geometrically thin, radiatively efficient and mechanized by turbulent viscosity. Yet, many observational and theoretical issues challenge this standard model, suggesting that we are missing essential-but...

Abstract: Scalar field theories with cubic interactions and purely imaginary coupling constants describe non-unitary universality classes arising when certain conformal minimal models are continued above two dimensions.  I will discuss two methods...