415 citations · 1.1k across the 17 of their papers we have counts for
18 papers
Crossed product algebras and generalized entropy for subregions
Shadi Ali Ahmad, Ro Jefferson
An early result of algebraic quantum field theory is that the algebra of any subregion in a QFT is a von Neumann factor of type III, in which entropy cannot be well-defined bec…
Criticality versus uniformity in deep neural networks
Aleksandar Bukva, Jurriaan de Gier, Kevin T. Grosvenor +3
Deep feedforward networks initialized along the edge of chaos exhibit exponentially superior training ability as quantified by maximum trainable depth. In this work, we explore the…
The edge of chaos: quantum field theory and deep neural networks
Kevin T. Grosvenor, Ro Jefferson
We explicitly construct the quantum field theory corresponding to a general class of deep neural networks encompassing both recurrent and feedforward architectures. We first consid…
Towards quantifying information flows: relative entropy in deep neural networks and the renormalization group
Johanna Erdmenger, Kevin T. Grosvenor, Ro Jefferson
We investigate the analogy between the renormalization group (RG) and deep neural networks, wherein subsequent layers of neurons are analogous to successive steps along the RG. In…
On the efficacy of virtual seminars
Hugo Camargo, Michal P. Heller, Ro Jefferson +4
During the SARS-CoV-2 pandemic, theoretical high-energy physics, and likely also the majority of other disciplines, are seeing a surge of virtual seminars as a primary means for sc…
Hydrodynamic attractors in phase space
Michal P. Heller, Ro Jefferson, Michał Spaliński +1
Hydrodynamic attractors have recently gained prominence in the context of early stages of ultra-relativistic heavy-ion collisions at the RHIC and LHC. We critically examine the exi…
Information geometry in quantum field theory: lessons from simple examples
Johanna Erdmenger, Kevin T. Grosvenor, Ro Jefferson
Motivated by the increasing connections between information theory and high-energy physics, particularly in the context of the AdS/CFT correspondence, we explore the information ge…
Path integral optimization as circuit complexity
Hugo A. Camargo, Michal P. Heller, Ro Jefferson +1
Early efforts to understand complexity in field theory have primarily employed a geometric approach based on the concept of circuit complexity in quantum information theory. In a p…
Black holes and quantum entanglement
Ro Jefferson
The black hole information paradox is a contradiction between fundamental principles which has puzzled physicists for over forty years. The crux of the problem lies in an assumptio…
Comments on black hole interiors and modular inclusions
Ro Jefferson
We show how the traversable wormhole induced by a double-trace deformation of the thermofield double state can be understood as a modular inclusion of the algebras of exterior oper…
Complexity and entanglement for thermofield double states
Shira Chapman, Jens Eisert, Lucas Hackl +4
Motivated by holographic complexity proposals as novel probes of black hole spacetimes, we explore circuit complexity for thermofield double (TFD) states in free scalar quantum fie…
Complexity as a novel probe of quantum quenches: universal scalings and purifications
Hugo A. Camargo, Pawel Caputa, Diptarka Das +2
We apply the recently developed notion of complexity for field theory to a quantum quench through a critical point in 1+1 dimensions. We begin with a toy model consisting of a quan…
Circuit complexity in quantum field theory
Ro Jefferson, Robert C. Myers
Motivated by recent studies of holographic complexity, we examine the question of circuit complexity in quantum field theory. We provide a quantum circuit model for the preparation…
Sub-AdS Scale Locality in AdS/CFT
Alexandre Belin, Ben Freivogel, Robert A. Jefferson +1
We investigate sub-AdS scale locality in a weakly coupled toy model of the AdS/CFT correspondence. We find that this simple model has the correct density of states at low a…
Precursors, Gauge Invariance, and Quantum Error Correction in AdS/CFT
Ben Freivogel, Robert A. Jefferson, Laurens Kabir
A puzzling aspect of the AdS/CFT correspondence is that a single bulk operator can be mapped to multiple different boundary operators, or precursors. By improving upon a recent mod…
Casting Shadows on Holographic Reconstruction
Ben Freivogel, Robert Alan Jefferson, Laurens Kabir +2
In the context of the AdS/CFT correspondence, we study several holographic probes that relate information about the bulk spacetime to CFT data. The best-known example is the relati…
Geometry of the Infalling Causal Patch
Ben Freivogel, Robert A. Jefferson, Laurens Kabir +1
The firewall paradox states that an observer falling into an old black hole must see a violation of unitarity, locality, or the equivalence principle. Motivated by this remarkable…
Monodromy of Inhomogeneous Picard-Fuchs Equations
Robert A. Jefferson, Johannes Walcher
We study low-degree curves on one-parameter Calabi-Yau hypersurfaces, and their contribution to the space-time superpotential in a superstring compactification with D-branes. We id…