Practical Quantum Key Distribution with Polarization-Entangled Photons

A. Poppe; A. Fedrizzi; T. Loruenser; O. Maurhardt; R. Ursin; H. R. Boehm; M. Peev; M. Suda; C. Kurtsiefer; H. Weinfurter; T. Jennewein; A. Zeilinger

doi:10.1364/OPEX.12.003865

Practical Quantum Key Distribution with Polarization-Entangled Photons

Quantum Physics 2009-11-10 v2

Authors: A. Poppe , A. Fedrizzi , T. Loruenser , O. Maurhardt , R. Ursin , H. R. Boehm , M. Peev , M. Suda , C. Kurtsiefer , H. Weinfurter , T. Jennewein , A. Zeilinger

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Abstract

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.

Keywords

quantum key distribution quantum entanglement quantum cryptography

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@article{arxiv.quant-ph/0404115,
  title  = {Practical Quantum Key Distribution with Polarization-Entangled Photons},
  author = {A. Poppe and A. Fedrizzi and T. Loruenser and O. Maurhardt and R. Ursin and H. R. Boehm and M. Peev and M. Suda and C. Kurtsiefer and H. Weinfurter and T. Jennewein and A. Zeilinger},
  journal= {arXiv preprint arXiv:quant-ph/0404115},
  year   = {2009}
}

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5 pages, 3 figures

Practical Quantum Key Distribution with Polarization-Entangled Photons

Abstract

Keywords

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