Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Waveguide Frequency Converter Connecting Rubidium Based Quantum
  Memories to the Telecom C-Band   The ability to coherently convert the frequency and temporal waveform of
single and entangled photons will be crucial to interconnect the various
elements of future quantum information networks. Of particular importance in
this context is the quantum frequency conversion of photons emitted by material
systems able to store quantum information, so called quantum memories. There
have been significant efforts to implement quantum frequency conversion using
non linear crystals, with non classical light from broadband photon pair
sources and solid state emitters. However, so far, solid state quantum
frequency conversion has not been achieved with long lived optical quantum
memories. Here, we demonstrate an ultra low noise solid state photonic quantum
interface suitable for connecting quantum memories based on atomic ensembles to
the telecommunication fiber network. The interface is based on an integrated
waveguide non linear device. As a proof of principle, we convert heralded
single photons at 780nm emitted by a rubidium based quantum memory to the
telecommunication wavelength of 1552nm. We demonstrate a significant amount of
non classical correlations between the converted photon and the heralding
signal.

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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
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The categories of this paper are: econ
12
The categories of this paper are: nucl-th