Quantization of time and the big bang via scale-invariant loop gravity
We consider the background-independent quantization of a general scale-invariant theory of gravity with matter, which supports a conserved Weyl current recently suggested as a natural flow of time. For scalar-metric systems, a conformal class of Ashtekar-Barbero connection variables is constructed,...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2020-01-01
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Series: | Physics Letters B |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319308287 |