4 citations · 4 across the 5 of their papers we have counts for
8 papers · 1 filter
Defect conformal field theories with free-in-the-bulk fermions
Christopher P. Herzog, Daniel Lloyd-Jones
We study codimension-two conformal defects for massless fermions that are free in a four-dimensional bulk, but interact on a two-dimensional defect. The bulk Dirac equation strongl…
How to get an interacting conformal line defect for free theories
Samuel Bartlett-Tisdall, Dongsheng Ge, Christopher P. Herzog
We argue that interacting conformal line defects in free quantum field theories can exist, provided that inversion symmetry is broken. Important for our demonstration is the existe…
Magnetised Bounds for Conformal Field Theories
Christopher P. Herzog, William H. Pannell, Biswajit Sahoo +1
Aspects of parity-preserving, charge-conjugation-invariant, three-dimensional conformal field theories (CFTs) with a global symmetry in the presence of a background magnetic…
A Nonlocal Schwinger Model
Ludovic Fraser-Taliente, Christopher P. Herzog, Abhay Shrestha
We solve a system of massless fermions constrained to two space-time dimensions interacting via a space-time dimensional Maxwell field. Through dimensional reduction to the def…
An Atlas for 3d Conformal Field Theories with a U(1) Global Symmetry
Samuel Bartlett-Tisdall, Christopher P. Herzog, Vladimir Schaub
We present a collection of numerical bootstrap computations for 3d CFTs with a U(1) global symmetry. We test the accuracy of our method and fix conventions through a computation of…
An Interacting, Higher Derivative, Boundary Conformal Field Theory
Christopher P. Herzog, Yanjun Zhou
We consider a higher derivative scalar field theory in the presence of a boundary and a classically marginal interaction. We first investigate the free limit where the scalar obeys…
Extremal fixed points and Diophantine equations
Christopher P. Herzog, Christian B. Jepsen, Hugh Osborn +1
The coupling constants of fixed points in the expansion at one loop are known to satisfy a quadratic bound due to Rychkov and Stergiou. We refer to fixed points that saturate t…
Bootstrapping Boundary QED Part I
Samuel Bartlett-Tisdall, Christopher P. Herzog, Vladimir Schaub
We use the numerical conformal bootstrap to study boundary quantum electrodynamics, the theory of a four dimensional photon in a half space coupled to charged conformal matter on t…