Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tunable quantum beat of single photons enabled by nonlinear
  nanophotonics   We demonstrate the tunable quantum beat of single photons through the
co-development of core nonlinear nanophotonic technologies for frequency-domain
manipulation of quantum states in a common physical platform. Spontaneous
four-wave mixing in a nonlinear resonator is used to produce non-degenerate,
quantum-correlated photon pairs. One photon from each pair is then frequency
shifted, without degradation of photon statistics, using four-wave mixing Bragg
scattering in a second nonlinear resonator. Fine tuning of the applied
frequency shift enables tunable quantum interference of the two photons as they
are impinged on a beamsplitter, with an oscillating signature that depends on
their frequency difference. Our work showcases the potential of nonlinear
nanophotonic devices as a valuable resource for photonic quantum information
science.

20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol