Seminari INFN

Recent progress in quantum-gravity phenomenology

by Giovanni Amelino Camelia (ROMA1)

Europe/Rome
Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

Aula Conversi

Dip. di Fisica - Edificio G. Marconi

Description
I provide evidence of the fact that quantum-gravity phenomenology is reaching a more mature phase. I use as main example scenarios for spacetime quantization such that systematic Planck-scale effects modify the laws of propagation of particles. In that respect much insight has been gained through the realization that the relevant quantum-spacetime pictures involve Planck-scale curvature of momentum space. And on the experimental side results recently reported by the Fermi telescope and the Pierre Auger Observatory establish the availability of the sought "Planck-scale sensitivity". In closing I also briefly comment on the emerging research program on non-systematic propagation effects (spacetime fuzziness) and how observation of distant quasars might provide relevant insight.