Deterministic secure direct communication using entanglement.

By K. Boström, T. Felbinger. Physical Review Letters, 2002

1,007 citations recorded by the source corpus.

A novel secure communication protocol is presented, based on an entangled pair of qubits and allowing asymptotically secure key distribution and quasisecure direct communication. Since the information is transferred in a deterministic manner, no qubits have to be discarded. The transmission of information is instantaneous, i.e., the information can be decoded during the transmission. The security against arbitrary eavesdropping attacks is provided. In case of eavesdropping attacks with full information gain, the detection rate is 50% per control transmission. The experimental realization of the protocol is feasible with relatively small effort, which also makes commercial applications conceivable.

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

View Paper: https://www.semanticscholar.org/paper/7d46cfcabe5d461b9982fad86d76eaa5ab96a3e1

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Quantum technology for military applications (2021, background): “Apart from QKD, which distributes the key only, the quantum network could be used for quantumsecure direct communication (QSDC) [188, 189, 190, 191] between space, special forces, air, navy and land assets.”
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].”
The security of practical quantum key distribution (2008, background): “In the days of booming of quantum information, some authors considered the possibility of sending directly the message on the quantum channel (Beige et al., 2002; Boström and Felbinger, 2002).”