2015/04/29 by Adetunmise C. Dada · 3 citations
Computer Science · Physics and Astronomy · #Computer science #Computer security #Key (lock) #Photon #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum cryptography #Quantum entanglement #Quantum information #Quantum key distribution #Quantum mechanics #Quantum network #Theoretical computer science #physics.optics #quant-ph
paper · pdf · doi:10.1103/physreva.91.052313
published in Physical Review A 91(5) (American Physical Society) · 7 pages, 3 figures
arxiv created 2015/04/29 · openalex publication_date 2015/05/15 · arxiv updated 2016/01/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We propose a practical quantum cryptographic scheme which combines high information capacity, such as provided by high-dimensional quantum entanglement, with the simplicity of a two-dimensional Clauser-Horne-Shimony-Holt (CHSH) Bell test for security verification. By applying a state combining entanglement in a two-dimensional degree of freedom, such as photon polarization, with high-dimensional correlations in another degree of freedom, such as photon orbital angular momentum (OAM) or path, the scheme provides a considerably simplified route towards security verification in quantum key distribution (QKD) aimed at exploiting high-dimensional quantum systems for increased secure key rates. It also benefits from security against collective attacks and is feasible using currently available technologies.