2023-09-04 リンショーピング大学
◆リンシェーピング大学の研究者は、ペロブスカイトと呼ばれる結晶のような材料から作られた発光ダイオードを使用した新しいQRNGを開発し、これを暗号化だけでなく、賭け事やコンピューターシミュレーションにも利用できるとしています。ペロブスカイトの特性により、このQRNGは費用対効果が高く、環境にも優しい可能性があります。将来的には、この技術が消費者向け電子機器に統合される可能性があり、セキュリティデータ用の電子部品がスウェーデン国内で生産されることが望ましいとされています。
＜関連情報＞
- https://liu.se/en/news-item/battre-cybersakerhet-med-nya-material
- https://www.nature.com/articles/s42005-023-01280-3
ペロブスカイト発光ダイオードに基づく量子乱数生成 Quantum random number generation based on a perovskite light emitting diode
Joakim Argillander,Alvaro Alarcón,Chunxiong Bao,Chaoyang Kuang,Gustavo Lima,Feng Gao & Guilherme B. Xavier
Communications Physics Published:30 June 2023
DOI:https://doi.org/10.1038/s42005-023-01280-3
Abstract
The recent development of perovskite light emitting diodes (PeLEDs) has the potential to revolutionize the fields of optical communication and lighting devices, due to their simplicity of fabrication and outstanding optical properties. Here we demonstrate that PeLEDs can also be used in the field of quantum technologies by implementing a highly-secure quantum random number generator (QRNG). Modern QRNGs that certify their privacy are posed to replace classical random number generators in applications such as encryption and gambling, and therefore need to be cheap, fast and with integration capabilities. Using a compact metal-halide PeLED source, we generate random numbers, which are certified to be secure against an eavesdropper, following the quantum measurement-device-independent scenario. The obtained generation rate of more than 10 Mbit s−1, which is already comparable to commercial devices, shows that PeLEDs can work as high-quality light sources for quantum information tasks, thus opening up future applications in quantum technologies.
