Six-State Symmetric Quantum Key Distribution Protocol

• 作者: Francesco Petruccione Makhamisa Senekane Mhlambululi Mafu
• 来源期刊: 量子信息科学期刊(英文)
• 学科: 物理学
• 关键词: QUANTUM KEY Distribution QKD SYMMETRIC Protocol Six-State QUANTUM PBC00 Optical Implementation
• 年，卷（期）: 2015,（2）
• 页码范围: 33-40
• 页数: 8页
• 分类号: O41

摘要

We propose and demonstrate an optical implementation of a quantum key distribution protocol, which uses three-non-orthogonal states and six states in total. The proposed scheme improves the protocol that is proposed by Phoenix, Barnett and Chefles [J. Mod. Opt. 47, 507 (2000)]. An additional feature, which we introduce in our scheme, is that we add another detection set;where each detection set has three non-orthogonal states. The inclusion of an additional detection set leads to improved symmetry, increased eavesdropper detection and higher security margin for our protocol.