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arXiv · 1412.3455

Linking Tests of Gravity On All Scales: from the Strong-Field Regime to Cosmology

Tessa Baker·Dimitrios Psaltis·Constantinos Skordis
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Abstract

The current effort to test General Relativity employs multiple disparate formalisms for different observables, obscuring the relations between laboratory, astrophysical and cosmological constraints. To remedy this situation, we develop a parameter space for comparing tests of gravity on all scales in the universe. In particular, we present new methods for linking cosmological large-scale structure, the Cosmic Microwave Background and gravitational waves with classic PPN tests of gravity. Diagrams of this gravitational parameter space reveal a noticeable untested regime. The untested window, which separates small-scale systems from the troubled cosmological regime, could potentially hide the onset of corrections to General Relativity.

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Tessa Baker, Dimitrios Psaltis, Constantinos Skordis. 2015-06-08. Linking Tests of Gravity On All Scales: from the Strong-Field Regime to Cosmology. https://doi.org/10.1088/0004-637x%2F802%2F1%2F63

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