# Provably secure and practical quantum key distribution over 307 km of optical fibre

@article{Korzh2014ProvablySA, title={Provably secure and practical quantum key distribution over 307 km of optical fibre}, author={Boris A. Korzh and Charles Ci Wen Lim and Raphael Houlmann and Nicolas Gisin and Ming Jun Li and D. A. Nolan and Bruno Sanguinetti and Rob Thew and Hugo Zbinden}, journal={Nature Photonics}, year={2014}, volume={9}, pages={163-168} }

A discrete-variable quantum key distribution system that is capable of distributing a provably-secure cryptographic key over 307 kilometres is demonstrated at a telecom wavelength.

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A quantum key distribution system with a 2.5 GHz repetition rate using a three-state time-bin protocol combined with a one-decoy approach that can distribute secret keys at a maximum distance of 421 km and obtain secret key rates of 6.

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A quantum-cryptography protocol has been proposed by analogy with distributed coding protocols operating at sub- and gigahertz clock frequencies that allows a simple, intuitively clear proof of security.

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The first QKD protocol was the polarization based BB84 protocol proposed in [1], and since then many QKKD protocols have been proposed and investigated.

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A proof-of-principle quantum key distribution experiment based on the round-robin differential phase shift protocol is demonstrated. Using a coherent wave-packet containing five pulses, the quantum…

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Before QKD can be widely adopted, it faces a number of important challenges such as secret key rate, distance, size, cost and practical security, according to a survey of key challenges.

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The coherent one-way (COW) protocol is implemented using direct laser modulation, with security enabled by optical injection locking. This method generates secure keys at rates above 1 Mbit/s with…

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