Entangled free-space quantum key distribution

Gregor Weihs; Christopher Erven

doi:10.1117/12.734947

10 September 2007 Entangled free-space quantum key distribution

Gregor Weihs; Christopher Erven

Author Affiliations +

Proceedings Volume 6780, Quantum Communications Realized; 678013 (2007) https://doi.org/10.1117/12.734947
Event: Optics East, 2007, Boston, MA, United States

Abstract

We have constructed an entanglement based quantum key distribution system that links three buildings, covering a largest distance of 1575 m. The photons are transmitted via telescopes through free space. In this paper, we give a detailed description of our system and the protocol that we implemented. We analyze system components and design considerations. Some preliminary results of a one-link experiment are presented.

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Gregor Weihs, Gregor Weihs, Christopher Erven, Christopher Erven, } "Entangled free-space quantum key distribution", Proc. SPIE 6780, Quantum Communications Realized, 678013 (10 September 2007); doi: 10.1117/12.734947; https://doi.org/10.1117/12.734947

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