Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Revealing Infinite Derivative Gravity's true potential: The weak-field
  limit around de Sitter backgrounds   General Relativity is known to produce singularities in the potential
generated by a point source. Our universe can be modelled as a de Sitter (dS)
metric and we show that ghost-free Infinite Derivative Gravity (IDG) produces a
non-singular potential around a dS background, while returning to the GR
prediction at large distances. We also show that although there are an
apparently infinite number of coefficients in the theory, only a finite number
actually affect the predictions.
  By writing the linearised equations of motion in a simplified form, we find
that at distances below the Hubble length scale, the difference between the IDG
potential around a flat background and around a de Sitter background is
negligible.

23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin