Causality, unitarity and stability in quantum gravity: a non-perturbative perspective
A Platania - Journal of High Energy Physics, 2022 - Springer
A bstract Resumming quantum fluctuations at the level of the gravitational path integral is
expected to result in non-local effective actions and thus in a non-trivial momentum …
expected to result in non-local effective actions and thus in a non-trivial momentum …
Formation and evaporation of quantum black holes from the decoupling mechanism in quantum gravity
JN Borissova, A Platania - Journal of High Energy Physics, 2023 - Springer
A bstract We propose a new method to account for quantum-gravitational effects in
cosmological and black hole spacetimes. At the core of our construction is the “decoupling …
cosmological and black hole spacetimes. At the core of our construction is the “decoupling …
[HTML][HTML] Asymptotic safety: swampland or wonderland?
I Basile, A Platania - Universe, 2021 - mdpi.com
We investigate the consequences of combining swampland conjectures with the
requirement of asymptotic safety. To this end, we explore the infrared regime of …
requirement of asymptotic safety. To this end, we explore the infrared regime of …
Raychaudhuri equations and gravitational collapse in Einstein-Cartan theory
S Hensh, S Liberati - Physical Review D, 2021 - APS
The Raychaudhuri equations for the expansion, shear, and vorticity are generalized in a
spacetime with torsion for timelike as well as null congruences. These equations are purely …
spacetime with torsion for timelike as well as null congruences. These equations are purely …