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arXiv · gr-qc/0506137

Nonlocal Effective Field Equations for Quantum Cosmology

Herbert W. Hamber·Ruth M. Williams
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Abstract

The possibility that the strength of gravitational interactions might slowly increase with distance, is explored by formulating a set of effective field equations, which incorporate the gravitational, vacuum-polarization induced, running of Newton's constant $G$. The resulting long distance (or large time) behaviour depends on only one adjustable parameter $ξ$, and the implications for the Robertson-Walker universe are calculated, predicting an accelerated power-law expansion at later times $t \sim ξ\sim 1/H$.

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Herbert W. Hamber, Ruth M. Williams. 2005-06-29. Nonlocal Effective Field Equations for Quantum Cosmology. https://doi.org/10.1142/s0217732306019979

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