Progress in satellite quantum key distribution
arXiv:1707.03613 · doi:10.1038/s41534-017-0031-5
Abstract
Quantum key distribution (QKD) is a family of protocols for growing a private encryption key between two parties. Despite much progress, all ground-based QKD approaches have a distance limit due to atmospheric losses or in-fibre attenuation. These limitations make purely ground-based systems impractical for a global distribution network. However, the range of communication may be extended by employing satellites equipped with high-quality optical links. This manuscript summarizes research and development which is beginning to enable QKD with satellites. It includes a discussion of protocols, infrastructure, and the technical challenges involved with implementing such systems, as well as a top level summary of on-going satellite QKD initiatives around the world.
16 pages, 7 figures, 2 tables
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Cited by in corpus (16)
- Micius quantum experiments in space
- Fading channel estimation for free-space continuous-variable secure quantum communication
- Satellite-based photonic quantum networks are small-world
- Feasibility Assessment For Practical Continuous Variable Quantum Key Distribution Over The Satellite-to-Earth Channel
- Spaceborne low-noise single-photon detection for satellite-based quantum communications
- Stabilization of transmittance fluctuations caused by beam wandering in continuous-variable quantum communication over free-space atmospheric channels
- Applicability of Squeezed-and Coherent-State Continuous-Variable Quantum Key Distribution over Satellite Links
- Sub-ns timing accuracy for satellite quantum communications
- Direct experimental certification of quantum non-Gaussian character and Wigner function negativity of single-photon detectors
- Ultrabright and narrowband intra-fiber biphoton source at ultralow pump power
- Satellite quantum communications when man-in-the-middle attacks are excluded
- Deploying hybrid quantum-secured infrastructure for applications: When quantum and post-quantum can work together
- A CubeSat platform for space based quantum key distribution
- Airborne Quantum Key Distribution with Boundary Layer Effects
- A Guide to Global Quantum Key Distribution Networks
- Demonstrating Miniaturised, entangled photon-pair sources on board nano satellites to enable future QKD missions