299 citations · 2k across the 90 of their papers we have counts for
4 papers · 1 filter
Weyl Gravity Revisited
Enrique Alvarez, Sergio Gonzalez-Martin
The on shell equivalence of first order and second order formalisms for the Einstein-Hilbert action does not hold for those actions quadratic in curvature. It would seem that by co…
Unimodular Trees versus Einstein Trees
Enrique Alvarez, Sergio Gonzalez-Martin, Carmelo P. Martin
The maximally helicity violating (MHV) tree level scattering amplitudes involving three, four or five gravitons are worked out in Unimodular Gravity. They are found to coincide wit…
Weyl invariance with a nontrivial mass scale
Enrique Alvarez, Sergio González-Martín
A theory with a mass scale and yet Weyl invariant is presented. The theory is not invariant under all diffeomorphisms but only under transverse ones. This is the reason why Weyl in…
A note on the Gauge Symmetries of Unimodular Gravity
Enrique Álvarez, Sergio González-Martín, Carmelo P. Martín
The symmetries of Unimodular Gravity are clarified somewhat.