Measuring-Basis Encrypted Quantum Key Distribution with Four-State Systems
Chen Pan, Yansong Li, Deng Fu-Guo, Long Gui-Lu · Communications in Theoretical Physics · 2007
A measuring-basis encrypted quantum key distribution scheme is proposed by using twelve nonorthogonal states in a four-state system and the measuring-basis encryption technique. In this scheme, two bits of classical information can be encoded on one four-state particle and the transmitted particles can be fully used.