Intrinsic time in Wheeler–DeWitt conformal superspace

Intrinsic time in Wheeler–DeWitt conformal superspace 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. Gravitation and Cosmology Springer Journals

Intrinsic time in Wheeler–DeWitt conformal superspace

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Pleiades Publishing
Copyright © 2017 by Pleiades Publishing, Ltd.
Physics; Classical and Quantum Gravitation, Relativity Theory; Astronomy, Observations and Techniques; Astrophysics and Astroparticles; Quantum Physics
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