The mass shell of the universe

Details The mass shell of the universe The mass shell of the universe

1996-10-12

arxiv.org/abs/gr-qc/9610020v1

Phys.Rev. D55 (1997) 3514-3524

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

plain latex file, 25 pags

Scientific paper

10.1103/PhysRevD.55.3514

The classical field equations of general relativity can be expressed as a single geodesic equation, describing the free fall of a point particle in superspace. Based on this formulation, a ``worldline'' quantization of gravity, analogous to the Feynman-Schwinger treatment of particle propagation, is proposed, and a hidden mass-shell parameter is identified. We consider the effective action for the supermetric, which would be induced at one loop. In certain minisuperspace models, we find that this effective action is stationary for vanishing cosmological constant.

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