Coherent State Representation of Semiclassical Quantum Gravity
classification
🌀 gr-qc
keywords
quantumcoherentgravityrepresentationsemiclassicalstateclassicalfield
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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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