Quantum Key Distribution with Qubit Pairs

• 作者: Mohd Asad Siddiqui Tabish Qureshi
• 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 QUANTUM CRYPTOGRAPHY
• 年，卷（期）: 2014,（3）
• 页码范围: 129-132
• 页数: 4页
• 分类号: O41

摘要

We propose a new Quantum Key Distribution method in which Alice sends pairs of qubits to Bob;each is in one of four possible states. Bob uses one qubit to generate a secure key and the other to generate an auxiliary key. For each pair he randomly decides which qubit to use for which key. The auxiliary key has to be added to Bob’s secure key in order to match Alice’s secure key. This scheme provides an additional layer of security over the standard BB84 protocol.