Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On-chip quantum interference between silicon photon-pair sources   Large-scale integrated quantum photonic technologies will require the on-chip
integration of identical photon sources with reconfigurable waveguide circuits.
Relatively complex quantum circuits have already been demonstrated, but few
studies acknowledge the pressing need to integrate photon sources and waveguide
circuits together on-chip. A key step towards such large-scale quantum
technologies is the integration of just two individual photon sources within a
waveguide circuit, and the demonstration of high-visibility quantum
interference between them. Here, we report a silicon-on-insulator device
combining two four-wave mixing sources, in an interferometer with a
reconfigurable phase shifter. We configure the device to create and manipulate
two-colour (non-degenerate) or same-colour (degenerate), path-entangled or
path-unentangled photon pairs. We observe up to 100.0+/-0.4% visibility quantum
interference on-chip, and up to 95+/-4% off-chip. Our device removes the need
for external photon sources, provides a path to increasing the complexity of
quantum photonic circuits, and is a first step towards fully-integrated quantum
technologies.

26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex