PIRSA:25060081

Video URL

https://pirsa.org/25060081

The problem of time and evolving constants of motion: the cosmological case

Rastgoo, S. (2025). The problem of time and evolving constants of motion: the cosmological case. Perimeter Institute for Theoretical Physics. https://pirsa.org/25060081

Rastgoo, Saeed. The problem of time and evolving constants of motion: the cosmological case. Perimeter Institute for Theoretical Physics, Jun. 06, 2025, https://pirsa.org/25060081 

          @misc{ scivideos_PIRSA:25060081,
            doi = {10.48660/25060081},
            url = {https://pirsa.org/25060081},
            author = {Rastgoo, Saeed},
            keywords = {},
            language = {en},
            title = {The problem of time and evolving constants of motion: the cosmological case},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2025},
            month = {jun},
            note = {PIRSA:25060081 see, \url{https://scivideos.org/index.php/pirsa/25060081}}
          }

Saeed Rastgoo University of Alberta

Talk numberPIRSA:25060081
DOI10.48660/25060081
Source RepositoryPIRSA
Collection
Talk Type Conference

Abstract

I present a cosmological toy model of the resolution of the problem of time based on the Page-Wootters formalism but written in terms of evolving constants of motion. The use of these quantities resolves the issues, e.g., the incorrect propagators, etc., of the Page-Wootters formalism, and points to some interesting preliminary results.