Physics

Abstract: In gravity, spacelike separated regions can be dependent on each other due to the constraint equations. I my talk, I will propose a natural definition of subsystem independence in classical gravity.  Next, I show that extremal surfaces...

Abstract: A decade of work in band theory has built towards an understanding of topology that is largely based on the character theory of the space group. The (thousands of) topological materials predicted in this way provide a diverse set of...

Abstract: I will give a lightning review of results on this subject from 1988-1998 and then describe more recent developments, mostly current work in progress.  First, I will describe topological twisting of Lagrangian N=2 d=4 field theories in...

Abstract: The connection between 3d pure gravity and Chern-Simons theory has been proposed and studied for decades. In this talk, I will give a brief review of the works 2304.13650 and 2401.13900 with Scott Collier and Lorenz Eberhardt, where we...

Abstract: As well known, mesons with large spin J in large NcQCD can be described as rotating open strings using effective field theory (EFT). However, some subtleties arise for light quarks, due to the breakdown of the derivative expansion near the...

Abstract: Conformal Field Theory (CFT) represents a class of quantum field theories that has profound applications across various physics domains, from critical phenomena in statistical mechanics to quantum matter, quantum gravity, and string theory...

Abstract: A decade of work in band theory has built towards an understanding of topology that is largely based on the character theory of the space group. The (thousands of) topological materials predicted in this way provide a diverse set of...

Abstract: I will discuss a paper I wrote with Juan and Yiming Chen (https://arxiv.org/pdf/2310.11617.pdf). I will briefly motivate the discussion by explaining how the double cone wormhole was proposed in the context of spectral form factors (first...

Abstract: We identify degeneracies in the energy spectra of quantum theories that occur at integer values of the continuous parameter N of an analytically continued global O(N) symmetry. The degeneracies are enforced by the requirement that...

Abstract: I will give a short overview of 2312.12592 where Juan and I compute the three point amplitude in BFSS by relating the amplitude to an index computation. I will first give a quick introduction to BFSS and motivate the computation. I will...