Redshift Anomalies with Universal Free-Fall

Details Redshift Anomalies with Universal Free-Fall Redshift Anomalies with Universal Free-Fall

2010-08-03

arxiv.org/abs/1008.0611v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Talk given at the Fifth Meeting on CPT and Lorentz Symmetry, at Indiana University, Bloomington, IN. Some stylistic changes

Scientific paper

For most theories which parametrize modifications of General Relativity, including those which violate the equivalence principle, gravitational redshift tests typically offer weaker constraints on such test parameters than do precision measurements of the universality of free fall (UFF) and local Lorentz invariance (LLI). Although redshift anomalies are often linked with violations of UFF or LLI, they do not have to be. We offer a simple model in which particle masses anomalously vary with the gravitational potential. This generates gravitational redshift anomalies unconstrained by existing tests of UFF or LLI. We propose new experiments to limit such effects.

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