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Journal Article

The security of practical quantum key distribution


Luetkenhaus,  Norbert
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

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Scarani, V., Bechmann-Pasquinucci, H., Cerf, N. J., Dusek, M., Luetkenhaus, N., & Peev, M. (2009). The security of practical quantum key distribution. REVIEWS OF MODERN PHYSICS, 81(3), 1301-1350. doi:10.1103/RevModPhys.81.1301.

Cite as: http://hdl.handle.net/11858/00-001M-0000-002D-6BD1-A
Quantum key distribution (QKD) is the first quantum information task to reach the level of mature technology, already fit for commercialization. It aims at the creation of a secret key between authorized partners connected by a quantum channel and a classical authenticated channel. The security of the key can in principle be guaranteed without putting any restriction on an eavesdropper's power. This article provides a concise up-to-date review of QKD, biased toward the practical side. Essential theoretical tools that have been developed to assess the security of the main experimental platforms are presented (discrete-variable, continuous-variable, and distributed-phase-reference protocols).