Practical Quantum Key Distribution with Polarization-Entangled Photons

Details Practical Quantum Key Distribution with Polarization-Entangled Photons Practical Quantum Key Distribution with Polarization-Entangled Photons

2004-04-20

arxiv.org/abs/quant-ph/0404115v2

Opt. Express 12, 3865-3871 (2004)

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

10.1364/OPEX.12.003865

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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