Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The purely gravitational generalization of spin-rotation couplings   The nature of Mashhoon's spin-rotation coupling is the interaction between a
particle spin (gravitomagnetic moment) and a gravitomagnetic field. Here we
will consider the coupling of graviton spin to the weak gravitomagnetic fields
by analyzing the Lagrangian density of weak gravitational field, and hence
study the purely gravitational generalization of Mashhoon's spin-rotation
couplings.

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The categories of this paper are: hep-ph
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
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The categories of this paper are: nlin
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol