1.3k citations · 6.6k across the 102 of their papers we have counts for
104 papers
Higher Derivative Sigma Models
John F. Donoghue, Gabriel Menezes
We explore the nature of running couplings in the higher derivative linear and nonlinear sigma models and show that the results in dimensional regularization for the physical runni…
Amplitudes and Renormalization Group Techniques: A Case Study
Diego Buccio, John F. Donoghue, Roberto Percacci
We explore the properties of a simple renormalizable shift symmetric model with a higher derivative kinetic energy and quartic derivative coupling, that can serve as a toy model fo…
Quantum General Relativity and Effective Field Theory
John F. Donoghue
This is a review of some of the concepts and results of the effective field theory treatment of quantum general relativity. Included are lessons of low energy quantum gravity, and…
Non-local partner to the cosmological constant
John F. Donoghue
I show that quantum corrections due to a massive particle generates a non-local term in the gravitational effective action which is of zeroth order in the derivative expansion, muc…
On Quadratic Gravity
John F. Donoghue, Gabriel Menezes
We provide a brief overview of what is known about Quadratic Gravity, which includes terms quadratic in the curvatures in the fundamental action. This is proposed as a renormalizea…
The Ostrogradsky instability can be overcome by quantum physics
John F Donoghue, Gabriel Menezes
In theories with higher time derivatives, the Hamiltonian analysis of Ostrogradsky predicts an instability. However, this Hamiltonian treatment does not correspond the way that the…