Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wave-particle duality of light appearing in the intensity
  interferometric situation   We show a wave-particle duality of light and its complementary relation in
the context of the intensity interference measured by intensity correlation
measurement, especially for the case of the second-order intensity interference
observed in the Hong-Ou-Mandel interferometer. Different from the complementary
relation appearing in the interference based on the phase coherence like in the
Young's double-slit interferometer, the complementary relation in the intensity
interference has a gap between classical and nonclassical lights. This reveals
a new nonclassical nature of light where both wave and particle properties are
classically understandable. We further extend the wave-particle duality and the
complementarity to higher-order intensity interferometric situations.

18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph