Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of two-photon interference effect with single
  non-photon-number resolving detector   Multiphoton interference effects can be measured with a single detector when
two input photons are temporally well separated when compared with the dead
time of the single-photon avalanche detector. Here we experimentally
demonstrate that the Hong-Ou-Mandel interference effect can be observed with a
single non-photon-number resolving detector via a time-delayed coincidence
measurement of successive electrical signals from the detector. The two-photon
interference experiment is performed by utilizing temporally well-separated
pairwise weak coherent pulses and the interference fringes are successfully
measured with a high visibility in the range of the limited upper bound for the
weak coherent photon source.

18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin