Hubble operator in isotropic loop quantum cosmology
arXiv:gr-qc/0308014 · doi:10.1088/0264-9381/21/1/012
Abstract
We present a construction of the Hubble operator for the spatially flat isotropic loop quantum cosmology. This operator is a Dirac observable on a subspace of the space of physical solutions. This subspace gets selected dynamically, requiring that its action be invariant on the physical solution space. As a simple illustrative application of the expectation value of the operator, we do find a generic phase of (super)inflation, a feature shown by Bojowald from the analysis of effective Friedmann equation of loop quantum cosmology.
20 pages, 3 eps figures, few comments and clarifications added to match with the published version
References in corpus (2)
Cited by in corpus (14)
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- Coordinate time dependence in Quantum Gravity
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- Elements of Loop Quantum Cosmology
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- On Energy Conditions and Stability in Effective Loop Quantum Cosmology