292 citations · 985 across the 40 of their papers we have counts for
39 papers
Perturbative unitarity of fractional field theories and gravity
Gianluca Calcagni, Fabio Briscese
Motivated by quantum gravity on spacetimes with multi-scale geometry, we analyze quantum field theories with a self-adjoint fractional power of the d'Alembertian i…
Fractal universe and quantum gravity made simple
Fabio Briscese, Gianluca Calcagni
Quantum field theory (QFT) on fractal spacetimes is a program aiming at quantizing the gravitational interaction consistently at all energy scales thanks to an intrinsically or dyn…
The Hubble tension as an effect of the renormalization of fundamental constants and cosmological parameters
Fabio Briscese
In this Letter we propose an interpretation of the Hubble tension as an effect of the scale-running of cosmological parameters and fundamental constants, as the Newton's constant $…
Amplitude prescriptions in field theories with complex poles
Damiano Anselmi, Fabio Briscese, Gianluca Calcagni +1
In the context of field theories with complex poles, we scrutinize four inequivalent ways of defining the scattering amplitudes, each forfeiting one or more tenets of standard quan…
Form factors, spectral and Källén-Lehmann representation in nonlocal quantum gravity
Fabio Briscese, Gianluca Calcagni, Leonardo Modesto +1
We discuss the conical region of convergence of exponential and asymptotically polynomial form factors and their integral representations. Then, we calculate the spectral represent…
Condensation temperature of strongly interacting condensates in the mean-field and semi-classical approximations
Fabio Briscese
We consider the effect of inter-atom interactions on the condensation temperature of an atomic Bose-Einstein condensate. We find an analytic expression of the shift in …