PIRSA:07010001

Does quantum gravity give rise to an observable nonlocality?

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}}
          }

Rafael Sorkin

Perimeter Institute for Theoretical Physics

Talk number
PIRSA:07010001
Collection
Talk Type
Subject
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.