PIRSA:13040083

Quantum causal dynamics without absolute space or time

APA

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

MLA

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

BibTex

          @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
Source RepositoryPIRSA
Collection

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.