Project manager: Hideo Kosaka
Title: Development of Quantum Interfaces for Building Quantum Computer Networks
Term: FY 2020-2025
R&D Themes: Diamond Quantum Memory, Optomechanical Cavity, Piezoelectric Microwave Cavity
Project Website:
This project aims to develop an integrated system of quantum computers and quantum communication to realize a large-scale distributed quantum computer with fault tolerance (Fig. 1). We develop quantum interfaces that connect superconducting quantum computer chips via fiber-optic quantum communication (Fig. 2). With quantum memory and optomechanical crystals as our core technologies, we conduct research and development from diamond growth and diamond nanofabrication to 3D implementation.
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Japanese Principal Investigator: Dr. Takeshi Oshima (Director of the Takasaki Institute for Advanced Quantum Science, National Institutes for Quantum Science and Technology (QST))
German Principal Investigator: Professor Fedor Jelezko (Professor at the Institute of Quantum Optics, Ulm University, Germany)
Title: Diamond spin qubits for quantum applications (DIAMONDQTECH)
Professor Kosaka’s（Co-PI） research theme: Quantum Communication
Term: FY2025-2029
The ASPIRE Program (Adopting Sustainable Partnerships for Innovative Research Ecosystem) aims to strengthen and enhance Japan’s scientific and technological capabilities. It fosters international collaboration in strategically important scientific fields by connecting top researchers from Japan to researchers in advanced STI countries and regions. The program seeks to accelerate the international circulation of talent within Japan’s research community.
In the Japan-Germany joint research field of quantum technologies the project “Diamond spin qubits for quantum applications (DIAMONDQTECH)” has been selected. Professor Kosaka will participate as a Co-PI (Principal Co-Investigator) for the research theme “Quantum Communication.”
★Ministry of Internal Affairs and Communications National Project (MIC)
For the MIC Project “Research and Development for Building a Global Quantum Cryptography Communication Network” Kosaka laboratory is researching about quantum repeater technology.
Additional information can be found on the QuREP website.
