Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin spin interaction and the relativistic Rabi formula   The interaction of an electromagnetic wave with spin (polarized light) and an
electron is computed. Specifically the spin flip probability is computed using
the Dirac equation for an electron trapped in a uniform magnetic field.

30
The categories of this paper are: q-alg
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc