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arXiv · 0801.4257

Time and Dirac Observables in Friedmann Cosmologies

Hossein Farajollahi
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Abstract

A cosmological time variable is emerged from the Hamiltonian formulation of Friedmann model to measure the evolution of dynamical observables in the theory. A set of observables has been identified for the theory on the null hypersurfaces that its evolution is with respect to the volume clock introduced by the cosmological time variable.

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Hossein Farajollahi. 2008-01-28. Time and Dirac Observables in Friedmann Cosmologies. https://doi.org/10.1007/s10773-007-9628-3

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