Continuous Variable (CV) Quantum Key Distribution (QKD) is a specific implementation of QKD with inherent properties that make it particularly attractive as a means of integrating QKD in modern optical networks operating with standard telecommunications equipment.
Following feasibility studies and tests, QTRAX will deploy CVQKD systems designed and built by the University of York over fibre that is part of the Network Rail Trans Pennine Initiative. This will be the first field trial of CVQKD in the UK, and the first use of QKD over track-side fibre.
The QKD systems will be installed in York, Leeds, Huddersfield and Manchester creating a 4-node network between the four cities. QTRAX will demonstrate both CVQKD itself and its integration with standard data encryption and transmission equipment from ADVA Optical Networking.