Qing-yu Cai, Baiwen Li
Abstract
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We show a deterministic secure direct communication protocol using single qubit in a mixed state. The security of this protocol is based on the security proof of BB84 protocol. It can be realized by the current technologies.
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We show a deterministic secure direct communication protocol using single qubit in a mixed state. The security of this protocol is based on the security proof of BB84 protocol. It can be realized by the current technologies.
Key concepts: BB84, Protocol (science), Quantum entanglement, Computer science, State (computer science), Qubit, Cryptographic protocol, Universal composability