2016/07/06 by Rikizo Ikuta, Toshiki Kobayashi, Kenichiro Matsuki +8
Computer Science · Mathematics · Physics and Astronomy · #Autocorrelation #Computer science #Detector #Excitation #Mathematics #Optics #Optoelectronics #Photon #Photonics #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum computer #Quantum cryptography #Quantum entanglement #Quantum information #Quantum information science #Quantum mechanics #Quantum network #Quantum optics #Quantum optics and atomic interactions #Quantum sensor #Statistics #Telecom infrastructure sharing #Telecommunications #Wavelength #quant-ph
paper · pdf · doi:10.1364/optica.3.001279
published as Optica 3, 1279 (2016) · 8 pages, 4 figures
arxiv created 2016/07/06 · openalex publication_date 2016/10/28 · arxiv updated 2017/10/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Telecom photonic quantum networks with matter quantum systems enable a rich variety of applications, such as a long distance quantum cryptography and one-way quantum computing. Preparation of a heralded single excitation (HSE) in an atomic ensemble by detecting a telecom wavelength photon having a correlation with the atomic excitation is an important step. Such a system has been demonstrated with a quantum frequency conversion (QFC) to telecom wavelength employing a Rb atomic cloud. However the limited wavelength selection prevents the next step. Here we for the first time demonstrate HSE with a solid-state-based QFC and a detector for a telecom wavelength that will have a great advantage of the utility of mature telecom technologies. We unambiguously show that the demonstrated HSE indicates a non-classical statistics by the direct measurement of the autocorrelation function.