PIRSA:21010010

Video URL

https://pirsa.org/21010010

Physical implications of a fundamental period of time

Bojowald, M. (2021). Physical implications of a fundamental period of time . Perimeter Institute for Theoretical Physics. https://pirsa.org/21010010

Bojowald, Martin. Physical implications of a fundamental period of time . Perimeter Institute for Theoretical Physics, Jan. 14, 2021, https://pirsa.org/21010010 

          @misc{ scivideos_PIRSA:21010010,
            doi = {10.48660/21010010},
            url = {https://pirsa.org/21010010},
            author = {Bojowald, Martin},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Physical implications of a fundamental period of time  },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2021},
            month = {jan},
            note = {PIRSA:21010010 see, \url{https://scivideos.org/pirsa/21010010}}
          }

Martin Bojowald Pennsylvania State University

Talk numberPIRSA:21010010
DOI10.48660/21010010
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

If time is described by a fundamental process rather than a coordinate, it

interacts with any physical system that evolves in time. The resulting
dynamics has recently been shown to be consistent provided the fundamental
period of the time system is sufficiently small. A strong upper bound T_C
< 10^{-33}s of the fundamental period of time, several orders of magnitude
below any direct time measurement, can be obtained from bounds on
dynamical variations of the period of a lab system evolving in time.
Possible cosmological implications will be discussed.