Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1996-09-02
J.Korean Phys.Soc.30:349,1997
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
10 Pages, ReVTeX, No figures
Scientific paper
We elaborate the recently introduced asymptotically exact semiclassical quantum gravity derived from the Wheeler-DeWitt equation by finding a particular coherent state representation of a quantum scalar field in which the back-reaction of the scalar field Hamiltonian exactly gives rise to the classical one. In this coherent state representation classical spacetime emerges naturally from semiclassical quantum gravity.
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