A CubeSat platform for space based quantum key distribution
- URL: http://arxiv.org/abs/2204.11005v1
- Date: Sat, 23 Apr 2022 06:28:43 GMT
- Title: A CubeSat platform for space based quantum key distribution
- Authors: Srihari Sivasankaran and Clarence Liu and Moritz Mihm and Alexander
Ling
- Abstract summary: We report on the follow-up mission of SpooQy-1, a 3U CubeSat that successfully demonstrated the generation of polarization-entangled photons in orbit.
The next iteration of the mission will showcase satellite-to-ground quantum key distribution based on a compact source of polarization-entangled photon-pairs.
We briefly describe the design of the optical ground station that we are currently building in Singapore for receiving the quantum signal.
- Score: 62.997667081978825
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Satellite nodes are an enabler of global quantum networks by overcoming the
distance limitations of fiber and free-space links on ground. The design of
quantum sources and receivers for satellites, however, is challenging in terms
of size, weight, and power consumption, as well as mechanical and thermal
stability. This is all the more true for cost-efficient nanosatellites such as
the popular CubeSat platform standard.
Here we report on the follow-up mission of SpooQy-1, a 3U CubeSat that
successfully demonstrated the generation of polarization-entangled photons in
orbit. The next iteration of the mission will showcase satellite-to-ground
quantum key distribution based on a compact source of polarization-entangled
photon-pairs, and we have recently completed the integration of a fully
functional demonstrator as a milestone towards the flight model.
We also briefly describe the design of the optical ground station that we are
currently building in Singapore for receiving the quantum signal. We present
the most important subsystems and illustrate the concept of operation.
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