Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Sagnac effect on a scale-dependent rotating BTZ black hole
  background   In this paper we investigate the Sagnac effect by calculating the difference
in travel time and phase shift observed for photon beams counter--propagating
in a rotating interferometer on a BTZ black hole solution in the context of
scale-dependent gravity, which describes the field around a massive static and
rotating object in $2+1$ gravity.

37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
1
The categories of this paper are: cs