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

  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},
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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