Experimental Demonstration of Free-Space Decoy-State Quantum Key Distribution over 144 km

  title={Experimental Demonstration of Free-Space Decoy-State Quantum Key Distribution over 144 km},
  author={Tobias Schmitt-Manderbach and Henning Weier and M. Furst and Rupert Ursin and F. Tiefenbacher and Thomas Scheidl and Josep Perdigues and Zoran Sodnik and Christian Kurtsiefer and John G. Rarity and Anton Zeilinger and Harald Weinfurter},
  journal={2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference},
In this paper, we report on the successful quantum key distribution using attenuated laser pulses over a real distance of 144 km. This link between the Canary islands of La Palma and Tenerife has a path length through atmosphere much longer than from LEO satellites to a ground station and serves as a realistic test bed for future quantum communication to space. 

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