Transverse gravity versus observations

Theories of gravity invariant under those diffeomorphisms generated by transverse vectors, {partial differential} Delta *m Delta *x Delta *m = 0 are considered. Such theories are dubbed transverse, and differ from General Relativity in that the determinant of the metric, g, is a transverse scalar. W...

Full description

Saved in:
Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2009-07, Vol.2009 (7), p.002-2
Main Authors: Álvarez, Enrique, Faedo, Antón F, López-Villarejo, J.J
Format: Article
Language:English
Subjects:
ASTROPHYSICS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
COSMOLOGY
DEGREES OF FREEDOM
EQUIVALENCE PRINCIPLE
GENERAL RELATIVITY THEORY
GRAVITATION
INVARIANCE PRINCIPLES
LIMITING VALUES
METRICS
SCALARS
TENSORS
VECTORS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Theories of gravity invariant under those diffeomorphisms generated by transverse vectors, {partial differential} Delta *m Delta *x Delta *m = 0 are considered. Such theories are dubbed transverse, and differ from General Relativity in that the determinant of the metric, g, is a transverse scalar. We comment on diverse ways in which these models can be constrained using a variety of observations. Generically, an additional scalar degree of freedom mediates the interaction, so the usual constraints on scalar-tensor theories have to be imposed. If the purely gravitational part is Einstein-Hilbert but the matter action is transverse, the models predict that the three a priori different concepts of mass (gravitational active and gravitational passive as well as inertial) are not equivalent anymore. These transverse deviations from General Relativity are therefore tightly constrained, actually correlated with existing bounds on violations of the equivalence principle, local violations of Newton's third law and/or violation of Local Position Invariance.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2009/07/002