PIRSA:10090067

Video URL

https://pirsa.org/10090067

Gravity in (and with) Quantum Spacetime

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

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

          @misc{ scivideos_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 for Theoretical Physics},
            year = {2010},
            month = {sep},
            note = {PIRSA:10090067 see, \url{https://scivideos.org/index.php/pirsa/10090067}}
          }

Giovanni Amelino-Camelia Sapienza Università di Roma - Dipartimento di Fisica

Talk numberPIRSA:10090067
DOI10.48660/10090067
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
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.