Modified gravity tomography

Brax, P.; Davis, A.-C.; Li, B.

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.

Citation

Brax, P., Davis, A., & Li, B. (2012). Modified gravity tomography. Physics Letters B, 715(1-3), 38-43. https://doi.org/10.1016/j.physletb.2012.08.002

• Journal Article Type: Article
• Publication Date: Aug 29, 2012
• Deposit Date: Mar 27, 2013
• Publicly Available Date: May 8, 2014
• Journal: Physics Letters B
• Print ISSN: 0370-2693
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 715
• Issue: 1-3
• Pages: 38-43
• DOI: https://doi.org/10.1016/j.physletb.2012.08.002