Extended Horava gravity and Einstein-aether theory

Details Extended Horava gravity and Einstein-aether theory Extended Horava gravity and Einstein-aether theory

2010-01-27

arxiv.org/abs/1001.4823v3

Phys.Rev.D81:101502,2010; Erratum-ibid.D82:129901,2010

Physics

High Energy Physics

High Energy Physics - Theory

4 pages; v.2: references updated, minor editing, matches version in PRD; v.3: typo fixed in Eq. (10)

Scientific paper

10.1103/PhysRevD.81.101502 10.11

Einstein-aether theory is general relativity coupled to a dynamical, unit timelike vector. If this vector is restricted in the action to be hypersurface orthogonal, the theory is identical to the IR limit of the extension of Horava gravity proposed by Blas, Pujol\`{a}s and Sibiryakov. Hypersurface orthogonal solutions of Einstein-aether theory are solutions to the IR limit of this theory, hence numerous results already obtained for Einstein-aether theory carry over.

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