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Time in Quantum Cosmology

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 08 Jan 2022Embargo end date: 01 Jan 2021 English Publisher:MDPI AGJournal:Universe, volume 8, page 36 (eissn: 2218-1997, Copyright policy )Funded by:FCT | LA 3
Authors: Claus Kiefer; Patrick Peter;

doi: 10.3390/universe8010036 , 10.48550/arxiv.2112.05788

arXiv: 2112.05788

Time in Quantum Cosmology

Abstract

Time in quantum gravity is not a well-defined notion despite its central role in the very definition of dynamics. Using the formalism of quantum geometrodynamics, we briefly review the problem and illustrate it with two proposed solutions. Our main application is quantum cosmology—the application of quantum gravity to the Universe as a whole.

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Keywords

[PHYS.GRQC] Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], quantum gravity: canonical, quantum cosmology; canonical quantum gravity; time, quantum cosmology, Elementary particle physics, FOS: Physical sciences, geometrodynamics: quantum, time: emergence, QC793-793.5, General Relativity and Quantum Cosmology (gr-qc), Quantum cosmology, Canonical quantum gravity, General Relativity and Quantum Cosmology, Time, canonical quantum gravity, time

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    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 33
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    		 Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    		 Top 1%
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
33
Top 10%
Top 10%
Top 1%
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