Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin - Rotation Coupling Observed in Neutron Interferometry   Einstein's theory of general relativity and quantum theory form the two major
pillars of modern physics. However, certain inertial properties of a particle's
intrinsic spin are inconspicuous while the inertial properties of mass are well
known. Here, by performing a neutron interferometric experiment, we observe
phase shifts arising as a consequence of the spin's coupling with the angular
velocity of a rotating magnetic field. The resulting phase shifts linearly
depend on the frequency of the rotation of the magnetic field. Our results
agree well with the predictions derived from the Pauli - Schr\"odinger
equation.

20
The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph