Semiclassical states for quantum cosmology

Details Semiclassical states for quantum cosmology Semiclassical states for quantum cosmology

2006-07-23

arxiv.org/abs/gr-qc/0607097v1

Phys.Rev.D75:024014,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages

Scientific paper

10.1103/PhysRevD.75.024014

In a metric variable based Hamiltonian quantization, we give a prescription for constructing semiclassical matter-geometry states for homogeneous and isotropic cosmological models. These "collective" states arise as infinite linear combinations of fundamental excitations in an unconventional "polymer" quantization. They satisfy a number of properties characteristic of semiclassicality, such as peaking on classical phase space configurations. We describe how these states can be used to determine quantum corrections to the classical evolution equations, and to compute the initial state of the universe by a backward time evolution.

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