2019/04/17 by Ioana Craiciu, Mi Lei, Jake Rochman +6 · 1 citation
Computer Science · Engineering · Physics and Astronomy · #Computer science #Nanophotonics #Open quantum system #Optics #Optoelectronics #Photonic and Optical Devices #Physics #Quantum #Quantum Information and Cryptography #Quantum channel #Quantum entanglement #Quantum imaging #Quantum information science #Quantum mechanics #Quantum network #Quantum optics and atomic interactions #Quantum sensor #Quantum technology #Repeater (horology) #Telecommunications #physics.app-ph #physics.optics #quant-ph
paper · pdf · doi:10.1103/physrevapplied.12.024062
published as Phys. Rev. Applied 12, 024062 (2019) · 12 pages, 4 figures
arxiv created 2019/04/17 · openalex created_date 2019/04/25 · openalex publication_date 2019/08/30 · arxiv updated 2019/09/04 · openalex updated_date 2026/08/06
Secure quantum communication over long distances is hindered by photon loss---a simple problem, complicated by the fact that quantum signals cannot be amplified without adding noise. The authors present on-chip quantum storage of light at telecommunication wavelength (around 1539 nm) for up to 10 \ensuremathμs, as an enabling technology for quantum repeater networks, which use distributed entanglement to overcome attenuation. High-fidelity quantum storage of light is demonstrated in a nanophotonic resonator fabricated in yttrium orthosilicate doped with erbium-167. Looking ahead, an improved resonator would yield a benchmark device on the way to scalable quantum communication networks.