8 papers
Numerical polology: towards next-generation model-building for cosmology
Will Barker, Will Handley, Michael Hobson +4
The dark sector need not be restricted to simple field content. Indeed, simple bosonic configurations, such as scalar-tensor or dark photon models, contrast with the much richer pi…
Gravitational mass generation and consistent non-minimal couplings: cubics and quartics of a massive vector
Carlo Marzo
An attempt to evade the strict uniqueness of consistent interactions involving spin-2 particles is made by modifying the Noether procedure from the outset. A vector field is introd…
Kummitus: a light-weight toolbox for counting DOF in perturbative QFT
Carlo Marzo
The consistent construction of quantum field theories beyond the simplest cases requires a precise characterization of the propagating degrees of freedom. These are encoded in the…
Can metric-affine gravity be saved?
Will Barker, Carlo Marzo, Alessandro Santoni
Like general relativity, metric-affine gravity should be a viable effective quantum theory, otherwise it is a mathematical curiosity without physical application. Assuming a pertur…
Higher spin Lagrangians from higher derivative diffeomorphisms
Will Barker, Dario Francia, Carlo Marzo +1
The covariant description of massless particles of arbitrary spin typically employs symmetric tensors of rank and rests on a local symmetry carried by symmetric tensor paramete…
Infrared foundations for quantum geometry II: Catalogue of all torsion-like theories including new ghost-tachyon-free cases
Will Barker, Carlo Marzo, Alessandro Santoni
The construction of consistent effective field theories in the infrared demands that models be defined by their underlying gauge symmetries, rather than by an arbitrary tuning of c…