3.3k citations · 13.5k across the 107 of their papers we have counts for
107 papers
Cosmology of Gravi-Axions
Stephon Alexander, Gregory Gabadadze, Leah Jenks +1
We show how a mass term for gravitational axions (''gravi-axions'') with a Chern-Simons coupling to gravity can naturally arise due to non-perturbative contributions from Euclidean…
Weakly-Coupled Trace Anomaly Action for Gravity
Gregory Gabadadze, Giorgi Tukhashvili
We discuss a local, diff-invariant quantum effective action for gravity that captures the trace anomaly via a counter-term. We discuss why this counter-term is the most significant…
Inflation with the Trace Anomaly Action and Primordial Black Holes
Gregory Gabadadze, David N. Spergel, Giorgi Tukhashvili
We study inflation in a recently proposed gravitational effective field theory describing the trace anomaly. The theory requires an additional scalar which is massless in the early…
Holography for the Trace Anomaly Action
Gregory Gabadadze, Massimo Porrati
A recently proposed effective action for the trace anomaly describes a tensor-scalar theory that is weakly coupled up to a certain high energy scale, where it becomes strongly inte…
A New Gravitational Action For The Trace Anomaly
Gregory Gabadadze
The question of building a local diff-invariant effective gravitational action for the trace anomaly is reconsidered. General Relativity (GR) combined with the existing action for…
Black Hole Superradiance in Dynamical Chern-Simons Gravity
Stephon Alexander, Gregory Gabadadze, Leah Jenks +1
Black hole superradiance provides a window into the dynamics of light scalar fields and their interactions close to a rotating black hole. Due to the rotation of the black hole, th…