PIRSA:07010001 Scientific Series Quantum Foundations

DOI10.48660/07010001

Series: Colloquium

Sorkin, R. (2007). Does quantum gravity give rise to an observable nonlocality?. Perimeter Institute. https://pirsa.org/07010001

Sorkin, Rafael. Does quantum gravity give rise to an observable nonlocality?. Perimeter Institute, Jan. 17, 2007, https://pirsa.org/07010001 

@misc{ pirsa_PIRSA:07010001,
  doi = {10.48660/07010001},
  url = {https://pirsa.org/07010001},
  author = {Sorkin, Rafael},
  keywords = {Quantum Foundations},
  language = {en},
  title = {Does quantum gravity give rise to an observable nonlocality?},
  publisher = {Perimeter Institute},
  year = {2007},
  month = {jan},
  note = {PIRSA:07010001 see, \url{https://pirsa.org}}
}

Abstract

If spacetime is "quantized" (discrete), then any equation of motion compatible with the Lorentz transformations is necessarily non-local. I will present evidence that this sort of nonlocality survives on length scales much greater than Planckian, yielding for example a nonlocal effective wave-equation for a scalar field propagating on an underlying causal set. Nonlocality of our effective field theories may thus provide a characteristic signature of quantum gravity.

Resources

Next talk

Related Talks