Factor ordering in standard quantum cosmology

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Authors

ŠTEIGL Roman HINTERLEITNER Franz

Year of publication 2006
Type Article in Periodical
Magazine / Source Classical and Quantum Gravity
MU Faculty or unit

Faculty of Science

Citation
Field Theoretical physics
Keywords Quantum Friedmann models with scalar field; factor ordering of Hamiltonian constraint; critical energy; cosmological constant
Description The Wheeler-DeWitt equation of Friedmann models with a massless scalar field is formulated with arbitrary factor ordering of the Hamiltonian constraint and a scalar product of wave functions is constructed. A critical energy of the matter field turns out to be necessary for a dynamical evolution of the wave function of the model. The introduction of a cosmological constant does not change the essential features.
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