PIRSA:10090067 Scientific Series Quantum Gravity

DOI10.48660/10090067

Series: Strong Gravity

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}}
}

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.

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