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97 papers
The Tilting Space of Boundary Conformal Field Theories
Christopher P. Herzog, Vladimir Schaub
In boundary conformal field theories, global symmetries can be broken by boundary conditions, generating a homogeneous conformal manifold. We investigate these geometries, showing…
Boundaries in Free Higher Derivative Conformal Field Theories
Adam Chalabi, Christopher P. Herzog, Krishnendu Ray +3
We consider free higher derivative theories of scalars and Dirac fermions in the presence of a boundary in general dimension. We establish a method for finding consistent conformal…
Fermions in Boundary Conformal Field Theory : Crossing Symmetry and -Expansion
Christopher P. Herzog, Vladimir Schaub
We use the equations of motion in combination with crossing symmetry to constrain the properties of interacting fermionic boundary conformal field theories. This combination is an…
Conformal Surface Defects in Maxwell Theory are Trivial
Christopher P. Herzog, Abhay Shrestha
We consider a free Maxwell field in four dimensions in the presence of a codimension two defect. Reflection positive, codimension two defects which preserve conformal symmetry in t…
Weyl Anomalies of Four Dimensional Conformal Boundaries and Defects
Adam Chalabi, Christopher P. Herzog, Andy O'Bannon +2
Motivated by questions about quantum information and classification of quantum field theories, we consider Conformal Field Theories (CFTs) in spacetime dimension with a c…
A Sum Rule for Boundary Contributions to the Trace Anomaly
Christopher P. Herzog, Vladimir Schaub
In the context of boundary conformal field theory, we derive a sum rule that relates two and three point functions of the displacement operator. For four dimensional conformal fiel…