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Dust reference frame in quantum cosmology · Around

2011

Dust reference frame in quantum cosmology

Husain, Viqar, Pawlowski, Tomasz

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We give a formulation of quantum cosmology with a pressureless dust and arbitrary additional matter fields.

The system has the property that its Hamiltonian constraint is linear in the dust momentum.
This feature provides a natural time gauge, leading to a physical hamiltonian that is not a square root.
Quantization leads to Schr{\"o}dinger equation for which unitary evolution is directly linked to geodesic completeness.

Built on

Brown J and Kuchař K V 1995 Phys.Rev
1995
Earlier work this paper cites.
Ashtekar A, Pawłowski T and Singh P 2006 Phys. Rev. Lett
2006
Earlier work this paper cites.
Ashtekar A, Corichi A and Singh P 2008 Phys. Rev
2008
Earlier work this paper cites.
Kamiński W and Lewandowski J 2008 Class. Quant. Grav
2008
Earlier work this paper cites.

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Then

Hossain G M, Husain V and Seahra S S 2010 Phys. Rev
2010
Later among the works it cites.
Husain V and Pawłowski T 2011 Time and a physical hamiltonian for quantum gravity to appear
2011
Closest in time.
Ashtekar A and Pawłowski T 2011 Cosmologicl constant in LQC in prep
2011
Closest in time.

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