Time and Dirac Observables in Friedmann Cosmologies
classification
🌀 gr-qc
keywords
observablestimecosmologicalevolutionfriedmanntheoryvariablebeen
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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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