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Revisiting the screening mechanism in f(R) gravity.

He, J. and Li, B. and Hawken, A. J. and Granett, B. R. (2014) 'Revisiting the screening mechanism in f(R) gravity.', Physical review D., 90 . p. 103505.


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.

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Publisher 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.
Date accepted:No date available
Date deposited:29 October 2015
Date of first online publication:November 2014
Date first made open access:No date available

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