Quantum cryptography security improvement with additional states
V. L. Kurochkin, Yury Kurochkin · 2010
This paper presents the theoretical discussion and experimental implementation of the BB84 quantum cryptography protocol modification. This modification is based on the increase in the possible number of bases. The theoretical discussion shows the advanced opportunity for the security increase. This protocol was experimentally demonstrated on the quantum cryptography setup based on polarization encoding through free space quantum channel.