PIRSA:21060088 Conference Quantum Foundations

DOI10.48660/21060088

Conference/School: Quantizing Time

Mercati, F. (2021). Kappa-Minkowski: physics with noncommutative time. Perimeter Institute. https://pirsa.org/21060088

Mercati, Flavio. Kappa-Minkowski: physics with noncommutative time. Perimeter Institute, Jun. 14, 2021, https://pirsa.org/21060088 

@misc{ pirsa_PIRSA:21060088,
  doi = {10.48660/21060088},
  url = {https://pirsa.org/21060088},
  author = {Mercati, Flavio},
  keywords = {Quantum Foundations},
  language = {en},
  title = {Kappa-Minkowski: physics with noncommutative time},
  publisher = {Perimeter Institute},
  year = {2021},
  month = {jun},
  note = {PIRSA:21060088 see, \url{https://pirsa.org}}
}

Abstract

The kappa-Minkowski noncommutative spacetime has been studied for a long time as an example of quantum spacetime with nontrivial commutation relations between spatial and temporal coordinates which, at first sight, seem to break Poincaré invariance. However kappa-Minkowski is invariant under a Hopf-algebra deformation of the Poincaré group, which involves some noncommutative structures that prevent the sharp localization of reference frames. I will describe recent progress towards the consistent construction of quantum field theories on this spacetime, and the identification of physical predictions that genuinely distinguish kappa-Minkowski from ordinary, commutative Minkowski spacetime.

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