Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Effect of a Magnetic Flux Line in Quantum Theory   The nonloclal exchange of the conserved, gauge invariant quantity
$e^{\frac{i}{\hbar} (p_{k}-\frac{e}{c}A_{k})L^{k}}, L^{k}=const., k=1,2$
between the charged particle and the magnetic flux line (in the $k=3$
direction), is responsible for the Aharonov-Bohm effect. This exchange occurs
at a definite time, before the wavepackets are brought together to interfere,
and can be verified experimentally.

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The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
1
The categories of this paper are: cs
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The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
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The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: atom-ph