Long-Distance Decoy-State Quantum Key Distribution in Optical Fiber

Danna Rosenberg, Jim W. Harrington, Patrick R. Rice, Philip A. Hiskett, Charles G. Peterson, Richard J. Hughes, Adriana E. Lita, Sae Woo Nam, and Jane E. Nordholt
Phys. Rev. Lett. 98, 010503 – Published 5 January 2007

Abstract

The theoretical existence of photon-number-splitting attacks creates a security loophole for most quantum key distribution (QKD) demonstrations that use a highly attenuated laser source. Using ultralow-noise, high-efficiency transition-edge sensor photodetectors, we have implemented the first version of a decoy-state protocol that incorporates finite statistics without the use of Gaussian approximations in a one-way QKD system, enabling the creation of secure keys immune to photon-number-splitting attacks and highly resistant to Trojan horse attacks over 107 km of optical fiber.

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  • Received 26 July 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.010503

©2007 American Physical Society

Authors & Affiliations

Danna Rosenberg1, Jim W. Harrington1, Patrick R. Rice1, Philip A. Hiskett1, Charles G. Peterson1, Richard J. Hughes1, Adriana E. Lita2, Sae Woo Nam2, and Jane E. Nordholt1

  • 1Applied Modern Physics, MS D454, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 2National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305, USA

See Also

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

Tobias Schmitt-Manderbach, Henning Weier, Martin Fürst, Rupert Ursin, Felix Tiefenbacher, Thomas Scheidl, Josep Perdigues, Zoran Sodnik, Christian Kurtsiefer, John G. Rarity, Anton Zeilinger, and Harald Weinfurter
Phys. Rev. Lett. 98, 010504 (2007)

Experimental Long-Distance Decoy-State Quantum Key Distribution Based on Polarization Encoding

Cheng-Zhi Peng, Jun Zhang, Dong Yang, Wei-Bo Gao, Huai-Xin Ma, Hao Yin, He-Ping Zeng, Tao Yang, Xiang-Bin Wang, and Jian-Wei Pan
Phys. Rev. Lett. 98, 010505 (2007)

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Vol. 98, Iss. 1 — 5 January 2007

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