Abstract
We show that the factor ordering ambiguities associated with the loop quantization of the gravitational part of the cosmological Hamiltonian constraint disappear at the level of the Wheeler-DeWitt equation only for a particular choice of lattice refinement model, which coincides with constraints imposed from phenomenological and consistency arguments.
- Received 3 June 2008
DOI:https://doi.org/10.1103/PhysRevD.78.024006
©2008 American Physical Society