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arXiv · 1306.6441

Pure Gravitational Back-Reaction Observables

N. C. Tsamis·R. P. Woodard
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Abstract

After discussing the various issues regarding and requirements on pure quantum gravitational observables in homogeneous-isotropic conditions, we construct a composite operator observable satisfying most of them. We also expand it to first order in the loop counting parameter and suggest it as a physical quantifier of gravitational back-reaction in an initially inflating cosmology.

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BibTeXRIS

N. C. Tsamis, R. P. Woodard. 2013-06-27. Pure Gravitational Back-Reaction Observables. https://doi.org/10.1103/physrevd.88.044040

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