A new scheme of multiuser quantum key distribution
Sun Xiao-Nan · Journal of Optoelectronics·laser · 2011
This paper proposes a multiuser quantum key distribution scheme,which is based on quantum state phase coding.This scheme makes the polarization code as address code to distinguish different users,and makes the phase code carry messages,so the quantum polarization and phase are modulated together.We establish a multiuser quantum channel model.Through simulation,the secure communicational distance is obtained.The results show this method is valid to separate different users′ messages,and is more secure than the one only based on quantum phase or quantum polarization.