PIRSA:10090067

Gravity in (and with) Quantum Spacetime

Amelino-Camelia, G. (2010). Gravity in (and with) Quantum Spacetime. Perimeter Institute. https://pirsa.org/10090067

Amelino-Camelia, Giovanni. Gravity in (and with) Quantum Spacetime. Perimeter Institute, Sep. 30, 2010, https://pirsa.org/10090067 

          @misc{ pirsa_PIRSA:10090067,
            doi = {10.48660/10090067},
            url = {https://pirsa.org/10090067},
            author = {Amelino-Camelia, Giovanni},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Gravity in (and with) Quantum Spacetime},
            publisher = {Perimeter Institute},
            year = {2010},
            month = {sep},
            note = {PIRSA:10090067 see, \url{https://pirsa.org}}
          }

Giovanni Amelino-Camelia

Sapienza Università di Roma - Dipartimento di Fisica

Talk number
PIRSA:10090067
Collection
Talk Type
Subject
Abstract
Over the last decade there has been strong interest in the theory and phenomenology of particle propagation in quantum spacetime. The main results concern possible Planck-scale modifications of the "dispersion" relation between energy and momentum of a particle. I review results establishing that these modifications can be tested using observations of gamma rays from sources at cosmological distances. And I report recent progress in the understanding of the implications of spacetime expansion for such studies. I also discuss recent preliminary results suggesting that the same Planck-scale modifications of the dispersion relation might have an unexpected role in gravitational collapse.