Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Realizing quantum nodes in space for cost-effective, global quantum
  communication: in-orbit results and next steps   Quantum sources and receivers operating on-board satellites are an essential
building block for global quantumnetworks. SpooQy-1 is a satellite developed at
the Centre for Quantum Technologies, which has successfully demonstrated the
operation of an entangled photon pair source on a resource-constrained CubeSat
platform. This miniaturized and ruggedized photon pair source is being upgraded
to be capable of space-to-ground quantum keydistribution and long-range
entanglement distribution. In this paper, we share results from SpooQy-1,
discuss their relevance for the engineering challenges of a small satellite
quantum node, and report on the development of the new light source.

28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga