PIRSA:13040083

Video URL

https://pirsa.org/13040083

Quantum causal dynamics without absolute space or time

(2013). Quantum causal dynamics without absolute space or time. Perimeter Institute for Theoretical Physics. https://pirsa.org/13040083

Quantum causal dynamics without absolute space or time. Perimeter Institute for Theoretical Physics, Apr. 11, 2013, https://pirsa.org/13040083 

          @misc{ scivideos_PIRSA:13040083,
            doi = {10.48660/13040083},
            url = {https://pirsa.org/13040083},
            author = {},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Quantum causal dynamics without absolute space or time},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {apr},
            note = {PIRSA:13040083 see, \url{https://scivideos.org/pirsa/13040083}}
          }
Talk numberPIRSA:13040083
DOI10.48660/13040083
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

I will describe a discrete model of spacetime which is quantum-mechanical, causal, and background free. The kinematics is described by networks whose vertices are labelled with arrows. These networks can be evolved forwards (or backwards) in time by using unitary replacement rules. The arrow structure permits one to define dynamics without using an absolute time parameter.  Based on arXiv:1201.2489.