Secure deterministic communication without entanglement.

By Marco Lucamarini, Stefano Mancini. Physical Review Letters, 2004

397 citations recorded by the source corpus.

We propose a protocol for deterministic communication that does not make use of entanglement. It exploits nonorthogonal states in a two-way quantum channel to attain unconditional security and high efficiency of the transmission. We explicitly show the scheme is secure against a class of individual attacks regardless of the noise on the channel. Its experimental realization is feasible with current technology.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/3d4749e55b4982536bc96570c5d2882042f68aff

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Experimental quantum secure direct communication with single photons (2015, background): “32,33,34 Based on DL04N1, Deng et al constructed a circular quantum secret sharing protocol, 35 which has been experimentally demonstrated by Jin et al over 50 km in fibers.”
Advances in quantum cryptography (2019, positive): “Quantum cryptographic protocols making a bidirectional use of quantum channels started with the introduction of deterministic protocols for the purpose of secure direct communication [118–120] and later evolved into more mature schemes of two-way QKD [121, 122].”