Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Cosmic Tsunamis in Modified Gravity: Disruption of Screening Mechanisms
  from Scalar Waves   Extending general relativity by adding extra degrees of freedom is a popular
approach for explaining the accelerated expansion of the Universe and to build
high energy completions of the theory of gravity. The presence of such new
degrees of freedom is, however, tightly constrained from several observations
and experiments that aim to test general relativity in a wide range of scales.
The viability of a given modified theory of gravity, therefore, strongly
depends on the existence of a screening mechanism that suppresses the extra
degrees of freedom. We perform simulations, and find that waves propagating in
the new degrees of freedom can significantly impact the efficiency of some
screening mechanisms, thereby threatening the viability of these modified
gravity theories. Specifically, we show that the waves produced in the
symmetron model can increase the amplitude of the fifth force and the
parametrized post-Newtonian parameters by several orders of magnitude.

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The categories of this paper are: q-alg
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an