Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multipath Wave-Particle Duality in Classical Optics   It is well known that in classical optics, the visibility of interference, in
a two-beam light interference, is related to the optical coherence of the two
beams. A wave-particle duality relation can be derived using this mutual
coherence. The issue of wave-particle duality in classical optics is analyzed
here, in the more general context of multipath interference. New definitions of
interference visibility and path distinguishability have been introduced, which
lead to a duality relation for multipath interference. The visibility is shown
to be related to a new multi-point optical coherence function.

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The categories of this paper are: math
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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: gr-qc