1996/04/22 by Eli Biham, E. Biham, B. Hüttner +3
Computer Science · Physics and Astronomy · #Computer science #Computer security #Cryptographic primitive #Cryptographic protocol #Cryptography #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum cryptography #Quantum entanglement #Quantum information #Quantum information science #Quantum mechanics #Quantum network #Quantum state #quant-ph
paper · pdf · doi:10.1103/physreva.54.2651
16 pages, RevTeX. Submitted to PRA. Figure available upon request ([email protected])
arxiv created 1996/04/22 · openalex publication_date 1996/10/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Quantum correlations between two particles show nonclassical properties that can be used for providing secure transmission of information. We present a quantum cryptographic system in which users store particles in a transmission center, where their quantum states are preserved using quantum memories. Correlations between the particles stored by two users are created upon request by projecting their product state onto a fully entangled state. Our system allows for secure communication between any pair of users who have particles in the same center. Unlike other quantum cryptographic systems, it can work without quantum channels and it is suitable for building a quantum cryptographic network. We also present a modified system with many centers. \textcopyright 1996 The American Physical Society.