Research demonstrates a new technique for improving long-distance quantum key distribution in a real-world field
An experiment, performed by Istituto Nazionale di Ricerca Metrologica (INRIM) on 200 km of the Italian Quantum Backbone, in collaboration with Toshiba Europe, shows that coherent laser interferometry considerably improves the performances of quantum key distribution protocols in long-distance, real-world networks. The study has been published in Nature Communications.
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And another achievement! increasing the distance is ‘key’ 🙂