PIRSA:10090092

An invitation to an invitation to causal sets

Henson, J. (2010). An invitation to an invitation to causal sets. Perimeter Institute. https://pirsa.org/10090092

Henson, Joe. An invitation to an invitation to causal sets. Perimeter Institute, Sep. 14, 2010, https://pirsa.org/10090092 

          @misc{ pirsa_PIRSA:10090092,
            doi = {10.48660/10090092},
            url = {https://pirsa.org/10090092},
            author = {Henson, Joe},
            keywords = {Quantum Foundations},
            language = {en},
            title = {An invitation to an invitation to causal sets},
            publisher = {Perimeter Institute},
            year = {2010},
            month = {sep},
            note = {PIRSA:10090092 see, \url{https://pirsa.org}}
          }

Joe Henson

BNP Paribas Asset Management London

Talk number
PIRSA:10090092
Collection
Talk Type
Subject
Abstract
A brief review of some recent work on the causal set approach to quantum gravity. Causal sets are a discretisation of spacetime that allow the symmetries of GR to be preserved in the continuum approximation. One proposed application of causal sets is to use them as the histories in a quantum sum-over-histories, i.e. to construct a quantum theory of spacetime. It is expected by many that quantum gravity will introduce some kind of fuzziness uncertainty and perhaps discreteness into spacetime, and generic effects of this fuzziness are currently being sought. Applied as a model of discrete spacetime, causal sets can be used to construct simple phenomenological models which allow us to understand some of the consequences of this general expectation.