Dust time in quantum cosmology [PDF]
Viqar Husain, Tomasz PawlowskiWe give a formulation of quantum cosmology with a pressureless dust and arbitrary additional matter fields. The dust provides a natural time gauge corresponding to a cosmic time, yielding a physical time independent Hamiltonian. The approach simplifies the analysis of both Wheeler-deWitt and loop quantum cosmology models, broadening the applicability of the latter.View original: http://arxiv.org/abs/1306.4995
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