Physical Implications of a Fundamental Period of Time.

@article{Wendel2020PhysicalIO,
  title={Physical Implications of a Fundamental Period of Time.},
  author={Garrett Wendel and Luis Martinez and Martin Bojowald},
  journal={Physical review letters},
  year={2020},
  volume={124 24},
  pages={
          241301
        }
}
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 is shown here 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, is obtained from bounds on dynamical variations of the period of a system evolving in time. 

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