Efficient room-temperature molecular single-photon sources for quantum key distribution
Year: 2023
Authors: Murtaza G., Colautti M., Hilke M., Lombardi P., Cataliotti FS., Zavatta A., Bacco D., Toninelli O.
Autors Affiliation: Univ Naples Federico II, Phys Dept, Via Cinthia 21, I-80126 Fuorigrotta, Italy; Natl Inst Opt CNR INO, Via Nello Carrara 1, I-50019 Sesto, Italy; European Lab Nonlinear Spect LENS, Via Nello Carrara 1, I-50019 Sesto, Italy; McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada; Univ Florence, Dept Phys, I-50019 Sesto Fiorentino, Italy; QTI SRL, Largo Enr Fermi 6, I-50125 Florence, Italy; Tech Univ Denmark, Dept Photon Engn, Lyngby, Denmark.
Abstract: Quantum key distribution (QKD) allows the distribution of cryptographic keys between multiple users in an information-theoretic secure way, exploiting quantum physics. While current QKD systems are mainly based on attenuated laser pulses, deterministic single -photon sources could give concrete advantages in terms of secret key rate (SKR) and security owing to the negligible probability of multi-photon events. Here, we introduce and demonstrate a proof-of-concept QKD system exploiting a molecule-based single-photon source operating at room temperature and emitting at 785 nm. With an estimated maximum SKR of 0.5 Mbps, our solution paves the way for room-temperature single-photon sources for quantum communication protocols.
Journal/Review: OPTICS EXPRESS
Volume: 31 (6) Pages from: 476440-1 to: 476440-11
More Information: European Metrology Programme for Innovation and Research (17FUN06 (SIQUST), 20FUN05 (SEQUME) ); H2020 Future and Emerging Technologies (899587 (project STORMYTUNE) ); QuantERA (731473 (project ORQUID)).KeyWords: Fluorescence; CommunicationDOI: 10.1364/OE.476440ImpactFactor: 3.200Citations: 17data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here
