6 papers
Gradient RG Flow in Scalar-Fermion QFTs
William H. Pannell, William Patrick Ronayne, Andreas Stergiou
The gradient property of the renormalisation group (RG) is examined to four-loop order in scalar-fermion systems in and dimensions. The crucial role played…
Magnetised Bounds for Conformal Field Theories
Christopher P. Herzog, William H. Pannell, Biswajit Sahoo +1
Aspects of parity-preserving, three-dimensional conformal field theories (CFTs) with a global symmetry in the presence of a background magnetic field are investigated. A loc…
Gradient Flows and the Curvature of Theory Space
William H. Pannell, Andreas Stergiou
The metric and potential associated with the gradient property of renormalisation group flow in multiscalar models in dimensions are studied. The metric is identi…
Multiscalar Critical Models with Localised Cubic Interactions
Sabine Harribey, William H. Pannell, Andreas Stergiou
Interface localised interactions are studied for multiscalar universality classes accessible with the perturbative expansion in dimensions. The associ…
A note on defect stability in
William H. Pannell
We explore the space of scalar line, surface and interface defect field theories in by examining their stability properties under generic deformations. Examples a…
Gradient Properties of Perturbative Multiscalar RG Flows to Six Loops
William H. Pannell, Andreas Stergiou
The gradient property of the renormalisation group (RG) flow of multiscalar theories is examined perturbatively in and dimensions. Such theories undergo RG…