Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Revisiting the screening mechanism in $f(R)$ gravity   We reexamine the screening mechanism in $f(R)$ gravity using N-body
simulations. By explicitly examining the relation between the extra scalar
field $\delta f_R$ and the gravitational potential $\phi$ 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 halos in simulations. We
also discuss the potential application of our results to real galaxy surveys.

30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat