Intrinsic time in Wheeler–DeWitt conformal superspace
- Authors: Pavlov A.E.1,2
-
Affiliations:
- Bogoliubov Laboratory of Theoretical Physics
- Institute of Mechanics and Energetics
- Issue: Vol 23, No 3 (2017)
- Pages: 208-218
- Section: Article
- URL: https://journals.rcsi.science/0202-2893/article/view/176083
- DOI: https://doi.org/10.1134/S0202289317030124
- ID: 176083
Cite item
Abstract
Intrinsic time in geometrodynamics is obtained using a scaled Dirac mapping. By addition of a background metric, one can construct a scalar field which is suitable for the role of intrinsic time. The Cauchy problem was successfully solved in conformal variables because they are physical. Intrinsic time as a logarithm of the spatial metric determinant was first applied to a cosmological problem byMisner. Global time exists under the condition of a constant mean curvature slicing of spacetime. A coordinate volume of a hypersurface and the so-called York’s mean time are a canonical conjugated pair. So, the volume is intrinsic global time by its sense. The experimentally observed redshift in cosmology is an evidence of its existence.
About the authors
A. E. Pavlov
Bogoliubov Laboratory of Theoretical Physics; Institute of Mechanics and Energetics
Author for correspondence.
Email: alexpavlov60@mail.ru
Russian Federation, ul. Joliot-Curie 6, Dubna, 141980; Timiryazevskaya 49, Moscow, 127550