Tomography increases key rates of quantum-key-distribution protocols
Tomography increases key rates of quantum-key-distribution protocols
We construct a practically implementable classical processing for the Bennett-Brassard 1984 (BB84) protocol and the six-state protocol that fully utilizes the accurate channel estimation method, which is also known as the quantum tomography. Our proposed processing yields at least as high a key rate as the standard processing by Shor …