Founded in May 2011, Jinan Institute of Quantum Technology (hereinafter referred to as the Institute) is a bureau-level institution in Jinan City. It is mostly engaged in basic research and applied basic research in quantum science, providing technical support for the transformation of quantum scientific research results, organizing the construction of quantum science and technology public research and development platform, building a quantum secret communication test network and introducing quantum science and technology talents in Shandong Province. The Institute currently has 61 personnel, among whom 24 with doctorate degrees, and 6 with senior titles. It has formed a research team centered on national outstanding youths and Changjiang scholars. It has established an academic committee including Wang Xiaoyun and Wang Jianyu as well as 15 academicians of the Chinese Academy of Sciences and Chinese Academy of Engineering. Academician Pan Jianwei is the chairman of the academic committee. The Institute has built eight laboratories and three technology platforms involving quantum communication technology, and Quantum Detection and Waveguide Devices Laboratory, etc. It has established a comprehensive quantum science and technology exhibition hall of about 800 square meters. In December 2018, it was approved as a Postdoctoral Innovation Practice Base in Shandong Province. In January 2019, the National Technical Committee (TC 578) on Quantum Computing and Metrology of Standardization Administration of China was approved to be established. In April, it was awarded the honorary title of "Excellent Youth Team" by the Shandong Provincial Committee of the Communist Youth League. In September, it launched the first international Quantum Information Technology Focus Group (FG-QIT4N), and the person chiefly in charge served as the first chairman of the Focus Group. The latest achievement "First Verification of Long-distance Twin-field Quantum Key Distribution" was awarded as one of the top ten domestic science and technology news in 2019. In August 2020, it was approved as "Shandong Science Education Base in 2020".
1. Basic Research and Applied Basic Research Results
In cooperation with Tsinghua University and the University of Science and Technology of China, the Institute pioneered to develop the "Measurement Device-independent Quantum Key Distribution" theory and achieved a world record of 404 kilometers of secure non-relay quantum key distribution. And in recent efforts, it, based on self-developed theory of twin-field quantum key distribution, extended the world record to 509 kilometers. Based on the lithium niobate waveguide chip, it cooperated with the University of Science and Technology of China to achieve static quantum entanglement distribution with an optical fiber distance of up to 50km, laying the quantum relay foundation for quantum communication and quantum network. The up-conversion single-photon detector and other key quantum core devices developed helped universities such as the University of Science and Technology of China realize long-distance quantum communication, daytime quantum communication and other major scientific research progress. On February 13, 2020, the self-developed periodically-polarized lithium niobate waveguide chip helped Academician Pan Jianwei's team realize the entanglement of long-distance quantum memory, setting a new world record which is reported in the People's Daily.
2. Core Device Development and Achievement Transformation
In terms of core device research and development, the Institute has established a periodically-polarized lithium niobate waveguide chip development platform, becoming one of the world's top three and the only China research and development institution that masters reverse proton exchange lithium niobate waveguides. Moreover, it has realized the complete independence, localization and mass production of periodically-polarized lithium niobate waveguide chips, and the related technical parameters of the chips have reached the international leading level. The Institute successfully developed the world’s first integrated multi-channel quantum frequency conversion chip, and used the chip to develop an array-type up-conversion single-photon detector. Based on the reverse proton exchange periodically polarized lithium niobate waveguide, and in cooperation with the team of the University of Science and Technology of China and the Massachusetts Institute of Technology, it successfully developed the world's first wide-spectrum color-independent single-photon detector with a dual-waveguide scheme.
In terms of quantum communication network construction, the Institute completed the world’s first miniaturized mobile quantum satellite ground station, and successfully completed the satellite-to-ground connection with the "Mozi” quantum science experiment satellite in Jinan. It had built the world’s largest and the most comprehensive practical metropolitan quantum communication network "Jinan Quantum Communication Experiment Network" and the first commercialized quantum communication network "Quantum Communication Network for Party and Government Offices of Jinan City". The Jinan Quantum Communication Experiment Network has been operating stably so far, and has achieved interconnection and intercommunication with the national quantum secure communication "Beijing-Shanghai Trunk Line" and "Mozi" quantum communication experimental satellite.
In the field of non-line-of-sight imaging single-photon imaging, the Institute independently developed a time-dependent single-photon detection device with picosecond-level time resolution. Based on this device, it has achieved sub-millimeter-level non-line-of-sight three-dimensional imaging which is currently the non-line-of-sight three-dimensional imaging with the highest precision in the world.
The Institute has published more than 47 high-level academic papers in internationally renowned journals such as Nature Photonics and PRL, applied for more than 15 national patents, and authorized 9 national patents. In addition, it has undertaken a number of national, provincial and ministerial-level scientific research projects such as the National Key R&D Program of China.
In the future, the Institute will be guided by building an international high-level R&D base, and strive to undertake the Jinan Base of the National Laboratory for Quantum Information Science (in preparation). Focus on building 8 to 10 world-leading quantum information and quantum technology frontier research laboratories, the Institute will gather more than 20 high-level researchers, and a quantum scientific research team of more than 200 persons, build a world-class quantum information science center involving quantum communication, quantum computing, quantum precision measurement and quantum core devices, accelerate the construction of the quantum information technology standard incubation platform and the international standard interconnection platform, and build a national "Quantum +" standard application demonstration base.
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