Effective Constraints and Physical Coherent States in Quantum Cosmology: A Numerical Comparison
arXiv:0911.4950 · doi:10.1088/0264-9381/27/14/145004
Abstract
A cosmological model with a cyclic interpretation is introduced, which is subject to quantum back-reaction and yet can be treated rather completely by physical coherent state as well as effective constraint techniques. By this comparison, the role of quantum back-reaction in quantum cosmology is unambiguously demonstrated. Also the complementary nature of strengths and weaknesses of the two procedures is illustrated. Finally, effective constraint techniques are applied to a more realistic model filled with radiation, where physical coherent states are not available.
32 pages, 25 figures
References in corpus (5)
Cited by in corpus (27)
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