Two-way quantum key distribution at telecommunication wavelength
Rupesh Kumar, Marco Lucamarini, Giovanni Di Giuseppe, Riccardo Natali, Giorgio Mancini, Paolo Tombesi · Physical Review A · 2008
We report on a quantum key distribution effected with a two-way deterministic protocol over a standard telecommunication fiber. Despite the common belief of a prohibitive loss rate for such a scheme, our results show its feasibility on distances of few tenths of kilometers.