603 citations · 6.9k across the 129 of their papers we have counts for
8 papers · 2 filters
Non-local Starobinsky inflation in the light of future CMB
K. Sravan Kumar, Leonardo Modesto
Analytic infinite derivative (AID) non-local quadratic curvature gravity in Weyl basis is known to be ghost free, superrenormalizable or finite and perturbatively Unitary and as su…
A Firepoint at the Black Hole Singularity
Ali Akil, Oscar Dahlsten, Leonardo Modesto
In his original derivation, Hawking showed that a Schwarzschild black hole is unstable at quantum level and it evolves to a final thermal mixed state violating unitarity. There are…
Entanglement swapping in black holes: restoring predictability
Ali Akil, Oscar Dahlsten, Leonardo Modesto
Hawking's black hole evaporation process suggests that we may need to choose between quantum unitarity and other basic physical principles such as no-signalling, entanglement monog…
Causality in Nonlocal Gravity
Stefano Giaccari, Leonardo Modesto
We study the causal structure of a class of weakly nonlocal gravitational theories (eventually coupled to matter) that are compatible with perturbative unitarity and finiteness at…
Reflection positivity in nonlocal gravity
Marios Christodoulou, Leonardo Modesto
Contrary to recent claims in the literature, a simple test for reflection positivite, which we call perturbative reflection positivity in the coincidence limit, is shown to be sati…
Non-perturbative spectrum of non-local gravity
Gianluca Calcagni, Leonardo Modesto, Giuseppe Nardelli
We investigate the non-perturbative degrees of freedom of a class of weakly non-local gravitational theories that have been proposed as an ultraviolet completion of general relativ…
Initial conditions and degrees of freedom of non-local gravity
Gianluca Calcagni, Leonardo Modesto, Giuseppe Nardelli
We prove the equivalence between non-local gravity with an arbitrary form factor and a non-local gravitational system with an extra rank-2 symmetric tensor. Thanks to this reformul…
Finite conformal quantum gravity and spacetime singularities
Leonardo Modesto, Leslaw Rachwal
We show that a class of finite quantum non-local gravitational theories is conformally invariant at classical as well as at quantum level. This is actually a range of conformal ano…