2014/01/27 by Stephan Krapick, Michael Stefszky, Michal Jachura +4 · 1 citation
Chemistry · Computer Science · Mathematics · Physics and Astronomy · #Algorithm #Atomic physics #Chemistry #Computer science #Computer security #Decoy #Key (lock) #Laser-Matter Interactions and Applications #Materials science #Mathematics #Optoelectronics #Parametric statistics #Photon #Physics #Quantum #Quantum Information and Cryptography #Quantum entanglement #Quantum key distribution #Quantum mechanics #Quantum optics #Quantum optics and atomic interactions #Range (aeronautics) #Spontaneous parametric down-conversion #State (computer science) #Statistics #quant-ph
paper · pdf · doi:10.1103/physreva.89.012329
published as Phys. Rev. A 89, 012329 (2014) · 5 pages, 4 figures
openalex publication_date 2014/01/27 · arxiv created 2014/01/28 · arxiv updated 2014/01/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report on a bright, nondegenerate type-I parametric down-conversion source, which is well suited for passive decoy-state quantum key distribution. We show the photon-number-resolved analysis over a broad range of pump powers and we prove heralded higher-order n-photon states up to n=4. The inferred photon click statistics exhibit excellent agreements to the theoretical predictions. From our measurement results we conclude that our source meets the requirements to avert photon-number-splitting attacks.