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Perturbative approaches to non-perturbative quantum gravity
Riccardo Martini, Gian Paolo Vacca, Omar Zanusso
We discuss the birth of the non-perturbative approach to quantum gravity known as quantum Einstein gravity, in which the gravitational interactions are conjectured to be asymptotic…
Projective transformations in metric-affine and Weylian geometries
Dario Sauro, Riccardo Martini, Omar Zanusso
We discuss generalizations of the notions of projective transformations acting on affine model of Riemann-Cartan and Riemann-Cartan-Weyl gravity which preserve the projective struc…
The origin of Weyl gauging in metric-affine theories
Dario Sauro, Omar Zanusso
In the first part, we discuss the interplay between local scale invariance and metric-affine degrees of freedom from few distinct points of view. We argue, rather generally, that t…
Weyl Covariance and the Energy Momentum Tensors of Higher-Derivative Free Conformal Field Theories
Andreas Stergiou, Gian Paolo Vacca, Omar Zanusso
Energy momentum tensors of higher-derivative free scalar conformal field theories in flat spacetime are discussed. Two algorithms for the computation of energy momentum tensors are…