Security of a discretely signaled continuous variable quantum key distribution protocol for high rate systems.
We propose a continuous variable based quantum key distribution protocol that makes use of discretely signaled coherent light and reverse error reconciliation. We present a rigorous security proof against collective attacks with realistic lossy, noisy quantum channels, imperfect detector efficiency, and detector electronic noise. This protocol is promising for convenient, high-speed operation at link distances up to 50 km with the use of post-selection.
Zhang
Zheshen
Z
Georgia Tech Lorraine, Georgia Tech-CNRS, UMI 2958, Metz, France.
Voss
Paul L
PL