1965/03/01 by Cheng-Zhi Peng, Jun Zhang, Dong Yang +13 · 8 citations
Agricultural and Biological Sciences · Computer Science · Earth and Planetary Sciences · Physics and Astronomy · #Greenhouse Technology and Climate Control #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum optics and atomic interactions #Remote Sensing and Land Use #quant-ph
paper · pdf · doi:10.1103/physrevlett.98.010505
published as Phys. Rev. Lett. 98, 010505 (2007) · 4 pages,3 figures
openalex publication_date 1965/03/01 · arxiv created 2007/01/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/06/11
We demonstrate the decoy-state quantum key distribution (QKD) with one-way quantum communication in polarization space over 102 km. Further, we simplify the experimental setup and use only one detector to implement the one-way decoy-state QKD over 75 km, with the advantage to overcome the security loopholes due to the efficiency mismatch of detectors. Our experimental implementation can really offer the unconditionally secure final keys. We use 3 different intensities of 0, 0.2, and 0.6 for the light sources in our experiment. In order to eliminate the influences of polarization mode dispersion in the long-distance single-mode optical fiber, an automatic polarization compensation system is utilized to implement the active compensation.