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Quantum Cryptography Security

Satellite Quantum Communication via the Alphasat Laser Communication Terminal

arXiv
Authors: Dominique Elser, Kevin Günthner, Imran Khan, Birgit Stiller, Christoph Marquardt, Gerd Leuchs, Karen Saucke, Daniel Tröndle, Frank Heine, Stefan Seel, Peter Greulich, Herwig Zech, Björn Gütlich, Ines Richter, Rolf Meyer

Year

2015

Paper ID

26686

Status

Preprint

Abstract Read

~2 min

Abstract Words

91

Citations

N/A

Abstract

By harnessing quantum effects, we nowadays can use encryption that is in principle proven to withstand any conceivable attack. These fascinating quantum features have been implemented in metropolitan quantum networks around the world. In order to interconnect such networks over long distances, optical satellite communication is the method of choice. Standard telecommunication components allow one to efficiently implement quantum communication by measuring field quadratures (continuous variables). This opens the possibility to adapt our Laser Communication Terminals (LCTs) to quantum key distribution (QKD). First satellite measurement campaigns are currently validating our approach.

Why This Paper Matters

  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
  • It adds a 2015 reference point for readers tracking recent quantum research.
  • By harnessing quantum effects, we nowadays can use encryption that is in principle proven to withstand any conceivable attack.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1510.04507 [2] arXiv https://arxiv.org/abs/1510.04507 [3] Publisher https://arxiv.org/abs/1510.04507

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