Quantum Cryptography And Quantum Information Processing

Zhou Xu-fen

The quantum information science is the science of quantum information processing technology. The quantum information processing technology includes quantum computing technology, quantum cryptography and quantum communication technologies,its impact on information security is great. The quantum computers and quantum algorithms made many difficult math problems solved easily, that is a direct threat to many of the traditional cryptography, and the anti-quantum attacks cryptographic algorithms became the focus of the theoretical research. Quantum cryptography and quantum teleportation can effectively improve the security of quantum communication networks and quantum signature technology. People encountered many challenges in the process of studying quantum information science,also made gratifying progress. People should adequately predict the impact of quantum informatics science on commercial, military, network,banking areas at the information age.

John Rarity

John Rarity

N. Imoto

Recently, quantum mechanics and information science have been combined to create a new field, namely, quantum information processing, which has been growing up rapidly in these years. The so-called quantum computing and quantum cryptography are included in this field. Although quantum information processing is quite attractive for its amazing possibility, it is also considered to be hard to realize any of such new ideas into practical use. The author develops a theory on quantum key distribution (QKD) with coherent states and a theory on two-state QKD with noisy light sources.

Nicolas Brunner

The goal of device-independent quantum information processing is to achieve information-theoretic tasks, e.g. quantum cryptography and randomness generation, and to guarantee their security without placing assumptions about the functioning of the devices used in the protocol.

Cedric Adell