Ground to satellite secure key exchange using quantum cryptography

By J. Rarity, P. Tapster, P. M. Gorman, P. Knight. 2002

255 citations recorded by the source corpus.

We examine the possibility of secure key exchange between a ground station and a low earth orbit satellite using the technique of quantum cryptography. The study suggests there are no technical obstacles to building a system that could exchange keys at kilobaud rates between a metre diameter telescope on the ground and a satellite with a 10 cm diameter lightweight telescope.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/a249e0ce35a5b7a3f92d4dd644c39d3a247a7779

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

The security of practical quantum key distribution (2008, methodology): “The first is to use the techniques of free space quantum communication to realize groundto-satellite links (Aspelmeyer et al., 2003; Buttler et al., 1998; Rarity et al., 2002).”
Advances in quantum cryptography (2019, unknown): “[323] J.”
Fundamental quantum optics experiments conceivable with satellites—reaching relativistic distances and velocities (2012, background): “(LEO), for example, will allow distances greater than 106 m and relative speeds of two detectors of ˘10 5c. Satellite missions for quantum communications have been considered in various congurations [7, 8, 9, 10, 11], and some scientic tests utilizing such satellites have been proposed. The Canadian”
Long-distance quantum communication with entangled photons using satellites (2003, background): “recently also been suggested by Rarity et al. in a space-suited system for single-photon QKD [ 35 ].”
Progress in satellite quantum key distribution (2017, background): “(a) – a weak coherent pulse source for BB84 QKD (adapted from [63]).”
Complete experimental toolbox for alignment-free quantum communication (2012, background): “Again from the linearity of quantum mechanics, the encoding and decoding transformations (3) and (4) hold, even if the polarization state is part of some larger entangled state.”
Micius quantum experiments in space (2022, methodology): “This review begins by introducing early ideas (Rarity et al., 2002; Hwang, 2003) and preliminary tests (Buttler, Hughes, Kwiat, Luther et al., 1998; Kurtsiefer et al., 2002; Aspelmeyer et al., 2003).”