Post-Newtonian parameters and constraints on Einstein-aether theory

By B. Foster, T. Jacobson. 2005

145 citations recorded by the source corpus.

We analyze the observational and theoretical constraints on ''Einstein-aether theory,'' a generally covariant theory of gravity coupled to a dynamical, unit, timelike vector field that breaks local Lorentz symmetry. The results of a computation of the remaining post-Newtonian parameters are reported. These are combined with other results to determine the joint post-Newtonian, vacuum-Cerenkov, nucleosynthesis, stability, and positive-energy constraints. All of these constraints are satisfied by parameters in a large two-dimensional region in the four-dimensional parameter space defining the theory.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/5406bb698db9417e1c0526334db4e2f55e1a180b

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Citations in the corpus

Einstein-æther gravity: a status report (2008, background): “In particular, the EddingtonRobertson-Schiff parameters β and γ are both unity [2], the Whitehead parameter ξ vanishes [20], and the five energy-momentum conservation parameters α3,ζ1,2,3,4 vanish simply because the theory is derived from a lagrangian.”
Black holes in Einstein-aether theory (2006, background): “hus providing a somewhat general class of boost violating models‡. There is a common range of the four coupling coeﬃcients for which simultaneously all postNewtonian parameters agree with those of GR [4, 5, 6], where all perturbations are stable [7, 8] and have positive energy [8, 9, 10], gravitatio”