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Modified gravity tomography.

Brax, P. and Davis, A.-C. and Li, B. (2012) 'Modified gravity tomography.', Physics letters B., 715 (1-3). pp. 38-43.

Abstract

We consider the effect of a canonically normalised scalar field degree of freedom on the dynamics of gravity from small to large scales. We show that the effects of modified gravity can be completely captured by the time variations of the scalar field mass and its coupling to matter. This leads to a parameterisation of modified gravity where local constraints are easy to analyse and large scale structure effects apparent.

Item Type:Article
Full text:(NA) Not Applicable
Download PDF (arXiv version)
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1016/j.physletb.2012.08.002
Publisher statement:NOTICE: this is the author’s version of a work that was accepted for publication in Physics Letters B. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Physics Letters B, 715, 1–3, 2012, 10.1016/j.physletb.2012.08.002.
Date accepted:No date available
Date deposited:No date available
Date of first online publication:August 2012
Date first made open access:No date available

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