3 papers
gr-qc2025
On the analogue of Einstein-Gauss-Bonnet theory in 3+1 dimensions
Giorgi Tukhashvili
Higher curvature corrections to the Einstein-Hilbert term may play an important role in probing the strong-field regime of gravity. In this letter, we demonstrate that the local ef…
hep-th2025
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…
hep-th2025
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…