Practical quantum key distribution with polarization entangled photons | Zendy

Andreas Poppe | Zendy; Alessandro Fedrizzi | Zendy; Rupert Ursin | Zendy; H. R. B�hm | Zendy; T. Lor�nser | Zendy; O. Maurhardt | Zendy; Momtchil Peev | Zendy; Martin Suda | Zendy; Christian Kurtsiefer | Zendy; Harald Weinfurter | Zendy; Thomas Jennewein | Zendy; A. Zeilinger | Zendy

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Practical quantum key distribution with polarization entangled photons

Author(s) -

Andreas Poppe,

Alessandro Fedrizzi,

Rupert Ursin,

H. R. B�hm,

T. Lor�nser,

O. Maurhardt,

Momtchil Peev,

Martin Suda,

Christian Kurtsiefer,

Harald Weinfurter,

Thomas Jennewein,

A. Zeilinger

Publication year - 2004

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.12.003865

Subject(s) - quantum key distribution , photon , spontaneous parametric down conversion , optics , photon polarization , physics , quantum imaging , photon entanglement , polarization (electrochemistry) , quantum optics , quantum cryptography , quantum channel , quantum network , quantum , quantum entanglement , optoelectronics , quantum information , quantum mechanics , chemistry

We present an entangled-state quantum cryptography system that operated for the first time in a real-world application scenario. The full key generation protocol was performed in real-time between two distributed embedded hardware devices, which were connected by 1.45 km of optical fiber, installed for this experiment in the Vienna sewage system. The generated quantum key was immediately handed over and used by a secure communication application.

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