Talk:Quantum key distribution/to do

• Enlarge and correct the E91 section: The "S" in the E91 section is not defined. Further, the section has $|S|=-2{\sqrt {2}}$ which is not possible as it has a nonnegative equal to a negative.
• Add other protocol descriptions (CV, B92, DPS, SARG04 etc.)
• Illustrate with diagrams [1], [2] and maybe photos of a QC setup