18 citations · 29 across the 6 of their papers we have counts for
7 papers · 1 filter
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…
Conformal/Poincaré Coset, Cosmology, and Descendants of Lovelock Terms
Gregory Gabadadze, Giorgi Tukhashvili
We calculate six invariant terms of a gravitational field theory that nonlinearly realizes the Conformal/Poincaré quotient, and reduce to the known conformal Galileons in the limit…
Unitarity and Different Phases of the Extended New Massive Gravity
Giorgi Tukhashvili
We study the New Massive Gravity extended by the curvature cubed invariant and the Cosmological Constant using the tree-level scattering amplitudes on a maximally symmetric space-t…
Gravitational Dressing of 3D Conformal Galileon
Gregory Gabadadze, Giorgi Tukhashvili
Could a conformal Galileon be describing a gauge mode of a broader diffeomorphism invariant theory? We answer this question affirmatively in 3D by using a coset construction for a…
Holographic CBK Relation
Gregory Gabadadze, Giorgi Tukhashvili
The Crewther-Broadhurst-Kataev (CBK) relation connects the Bjorken function for deep-inelastic sum rules (or the Gross - Llewellyn Smith function) with the Adler function for elect…