PIRSA:21060109 Conference Quantum Foundations

DOI10.48660/21060109

Conference/School: Quantizing Time

Kiefer, C. (2021). "TIME IN QUANTUM GRAVITY - From the fundamental level to the classical limit". Perimeter Institute. https://pirsa.org/21060109

Kiefer, Claus. "TIME IN QUANTUM GRAVITY - From the fundamental level to the classical limit". Perimeter Institute, Jun. 15, 2021, https://pirsa.org/21060109 

@misc{ pirsa_PIRSA:21060109,
  doi = {10.48660/21060109},
  url = {https://pirsa.org/21060109},
  author = {Kiefer, Claus},
  keywords = {Quantum Foundations},
  language = {en},
  title = {"TIME IN QUANTUM GRAVITY - From the fundamental level to the classical limit"},
  publisher = {Perimeter Institute},
  year = {2021},
  month = {jun},
  note = {PIRSA:21060109 see, \url{https://pirsa.org}}
}

Abstract

Time cannot be both absolute (as in quantum mechanics) and dynamical (as in general relativity). I present general arguments for the absence of time at the most fundamental level of quantum gravity. I discuss possible concepts that could replace it and present the recovery of standard time as an approximate concept. My discussion is restricted to quantum geometrodynamics, but I argue for the validity of my conclusions beyond that scheme.

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