Physics

Abstract: I will discuss a simple model of topological gravity defined by a 3d TQFT summed over all geometries. I will explain how this sum is formulated so that the holographically dual boundary ensemble admits a probabilistic interpretation. This...

Abstract: How much current does a sliding electron crystal carry? The answer to this simple question has important implications for the dynamic properties of the crystal, such as the frequency of its cyclotron motion, and its phonon spectrum. In...

Abstract: I will discuss some upcoming work with Jonah. We investigated the extent to which hallmark features of bulk gravity survive at finite string tension in holographic models. Working in the non-interacting limit, we model excited string modes...

Abstract: Not much is known about what happens at the end of black hole evaporation. Pushing the semi-classical evolution well beyond its regime of validity suggests that the final Cauchy slice breaks into a piece that remains behind the event...

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: 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...