Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravitomagnetic effect and spin-torsion coupling   We study the gravitomagnetic effect in the context of absolute parallelism
with the use of a modified geodesic equation via a free parameter b. We
calculate the time difference in two atomic clocks orbiting the Earth in
opposite directions and find a small correction due to the coupling between the
torsion of the spacetime and the internal structure of atomic clocks measured
by the free parameter.

35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th