5 citations · 15 across the 16 of their papers we have counts for
7 papers · 1 filter
Fast Poisson brackets and constraint algebras in canonical gravity
Will Barker
In the study of alternative or extended theories of gravity, Dirac's Hamiltonian constraint algorithm is invaluable for enumerating the propagating modes and gauge symmetries. For…
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…
Spectrum of pure gravity: full Hamiltonian analysis
Will Barker, Dražen Glavan
We perform a full Hamiltonian constraint analysis of pure Ricci-scalar-squared () gravity to clarify recent controversies regarding its particle spectrum. While it is well est…
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…
Alleviating the Hubble tension with Torsion Condensation (TorC)
Sinah Legner, Will Handley, Will Barker +1
Constraints on the cosmological parameters of Torsion Condensation (TorC) are investigated using Planck 2018 Cosmic Microwave Background data. TorC is a case of Poincaré gauge theo…
Infrared foundations for quantum geometry I: Catalogue of totally symmetric rank-three field theories
Will Barker, Carlo Marzo, Alessandro Santoni
We systematically obtain all linear models which propagate a totally symmetric rank-three field without parity violation on a flat background. Each such model is defined exclusivel…
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…