Controlled quantum secure direct communication by entanglement distillation or generalized measurement

Controlled quantum secure direct communication by entanglement distillation or generalized... We propose two controlled quantum secure communication schemes by entanglement distillation or generalized measurement. The sender Alice, the receiver Bob and the controllers David and Cliff take part in the whole schemes. The supervisors David and Cliff can control the information transmitted from Alice to Bob by adjusting the local measurement angles $$\theta _4$$ θ 4 and $$\theta _3$$ θ 3 . Bob can verify his secret information by classical one-way function after communication. The average amount of information is analyzed and compared for these two methods by MATLAB. The generalized measurement is a better scheme. Our schemes are secure against some well-known attacks because classical encryption and decoy states are used to ensure the security of the classical channel and the quantum channel. Quantum Information Processing Springer Journals

Controlled quantum secure direct communication by entanglement distillation or generalized measurement

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Springer US
Copyright © 2016 by Springer Science+Business Media New York
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
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