Resolving the Question of Time for Semiclassical Gravity

Details Resolving the Question of Time for Semiclassical Gravity Resolving the Question of Time for Semiclassical Gravity

1994-08-17

arxiv.org/abs/astro-ph/9408055v1

Astronomy and Astrophysics

Astrophysics

9 pages, Latex 2.09, ALBERTA THY/24-94

Scientific paper

Hamilton-Jacobi theory provides a natural starting point for a covariant description of the gravitational field. Using a spatial gradient expansion, one may solve for the phase of the wavefunction by using a line-integral in superspace. Each contour of integration corresponds to a particular choice of the time-hypersurface, and each yields the same answer. In this way, one can describe all time choices simultaneously. As a demonstration of the formalism, I will compute large-angle microwave background anisotropies and the galaxy-galaxy correlation function associated with scalar and tensor fluctuations of power-law inflation.

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