Revisiting the screening mechanism in f(R) gravity

He, J.; Li, B.; Hawken, A.J.; Granett, B.R.

doi:10.1103/physrevd.90.103505

Revisiting the screening mechanism in f(R) gravity

He, J.; Li, B.; Hawken, A.J.; Granett, B.R.

Authors

J. He

Professor Baojiu Li baojiu.li@durham.ac.uk
Professor

A.J. Hawken

B.R. Granett

Abstract

We reexamine the screening mechanism in f(R) gravity using N-body simulations. By explicitly examining the relation between the extrascalar field δfR and the gravitational potential ϕ in the perturbed Universe, we find that the relation between these two fields plays an important role in understanding the screening mechanism. We show that the screening mechanism in f(R) gravity depends mainly on the depth of the potential well and find a useful condition for identifying unscreened haloes in simulations. We also discuss the potential application of our results to real galaxy surveys.

Citation

He, J., Li, B., Hawken, A., & Granett, B. (2014). Revisiting the screening mechanism in f(R) gravity. Physical Review D, 90, Article 103505. https://doi.org/10.1103/physrevd.90.103505

Journal Article Type	Article
Publication Date	Nov 4, 2014
Deposit Date	Oct 2, 2014
Publicly Available Date	Oct 29, 2015
Journal	Physical Review D
Print ISSN	1550-7998
Electronic ISSN	1550-2368
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	90
Article Number	103505
DOI	https://doi.org/10.1103/physrevd.90.103505
Related Public URLs	http://arxiv.org/abs/1406.6820

Files

Published Journal Article (10.3 Mb)
PDF

Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review D 90, 103505 © 2014 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.