PIRSA:05090001

Video URL

https://pirsa.org/05090001

Is a past-finite causal order the inner basis of spacetime?

Sorkin, R. (2005). Is a past-finite causal order the inner basis of spacetime?. Perimeter Institute for Theoretical Physics. https://pirsa.org/05090001

Sorkin, Rafael. Is a past-finite causal order the inner basis of spacetime?. Perimeter Institute for Theoretical Physics, Sep. 07, 2005, https://pirsa.org/05090001 

          @misc{ scivideos_PIRSA:05090001,
            doi = {10.48660/05090001},
            url = {https://pirsa.org/05090001},
            author = {Sorkin, Rafael},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Is a past-finite causal order the inner basis of spacetime?},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2005},
            month = {sep},
            note = {PIRSA:05090001 see, \url{https://scivideos.org/index.php/pirsa/05090001}}
          }

Rafael Sorkin Perimeter Institute for Theoretical Physics

Talk numberPIRSA:05090001
DOI10.48660/05090001
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

The causal set -- mathematically a finitary partial order -- is a candidate discrete substratum for spacetime. I will introduce this idea and describe some aspects of causal set kinematics, dynamics, and phenomenology, including, as time permits, a notion of fractal dimension, a (classical) dynamics of stochastic growth, and an idea for explaining some of the puzzling large numbers of cosmology. I will also mention some general insights that have emerged from the study of causal sets, the most recent one concerning the role of intermediate length-scales in discrete spacetime theories.