Invitado: : Kiyoshi Tamaki 
NTT Basic Research Laboratories,Japan.

Date:19 de diciembre, 2013 
Time:14:30 
Place:3rd floor seminar lecture room. Dpt. Física Teórica I. Facultad de Ciencias Físicas UCM.

ABSTRACT

 In!the!first!part!of!my!talk,!I!will!present!activities!of!the!project!in Tokyo!QKD!network.!In!particular,!I!introduce!a!recent!long!term field!test!of!our!QKD!system.!The!second!part!of!the!talk!will!be!devoted!to sideZchannel!issues!of!QKD.!QKD!is!said!to!be!unconditionally!secure, but!it!is!based!on!some!assumptions!on!the!users’!devices.!That!is,!the! actual devises!have!to!operate!as!the mathematical!models!that!the! security proof!requires.!Unfortunately,!there!is!a!gap!between!the!theory! and the!actual!devices,!and!I!will!introduce!some!counterZmeasures!to! close!this!gap.