December 20, 2023
Center for Quantum Information and Quantum Biology at Osaka University
RIKEN
National Institute of Information and Communications Technologye-trees.Japan, Inc.
Fujitsu Limited
NTT Corporation
QuEL, Inc.
QunaSys Inc.
Systems Engineering Consultants Co.,LTD.

Research group launches Japan’s third quantum computer at Osaka University
Quantum computer sources majority of components from Japanese makers

Tokyo and Osaka, December 20, 2023 – A consortium of joint research partners including
the Center for Quantum Information and Quantum Biology at Osaka University, RIKEN, theAdvanced Semiconductor Research Center at the National Institute of Advanced Industrial
Science and Technology (AIST), the Superconducting ICT Laboratory at the National Instituteof Information and Communications Technology (NICT), Amazon Web Services, etrees.Japan, Inc., Fujitsu Limited, NTT Corporation (NTT), QuEL, Inc., QunaSys Inc., andSystems Engineering Consultants Co.,LTD. (SEC) today announced the successful
development of Japan’s third superconducting quantum computer (1) installed at OsakaUniversity. Starting December 22, 2023, the partners will provide users in Japan access tothe newly developed computer via the cloud, enabling researchers to execute quantum
algorithms (2), improve and verify the operation of software, and explore use cases remotely.
The newly developed superconducting quantum computer uses a 64 qubit chip provided byRIKEN, which leverages the same design as the chip in RIKEN's first superconducting
quantum computer, which was unveiled to users in Japan as a cloud service for noncommercial use on March 27, 2023 (3).
For the new quantum computer, the research team sourced more domesticallymanufactured components (excluding the refrigerator). The research team confirmed thatthe new quantum computer, including its components, provides sufficient performance andwill utilize the computer as a test bed for components made in Japan.

Moving forward, the research group will operate the new computer while improving its
software and other systems for usage including the processing of heavy workloads on thecloud. The research team anticipates that the computer will drive further progress in thefields of machine learning and the development of practical quantum algorithms, enable theexploration of new use cases in material development and drug discovery, and contribute to
the solution of optimization problems to mitigate environmental impact.

The joint research group is comprised of: Dr. Masahiro Kitagawa, (Professor, Graduate
School of Engineering Science, Director of the Center for Quantum Information andQuantum Biology at Osaka University), Dr. Makoto Negoro (Associate Professor, Vice
Director of the Center for Quantum Information and Quantum Biology at Osaka University),
Dr. Yasunobu Nakamura (Director of the RIKEN Center for Quantum Computing (RQC)),
Dr. Katsuya Kikuchi (Group Leader of the 3D Integration System Group of the Device
Technology Research Institute at AIST), Dr. Hirotaka Terai (Executive Researcher at theSuperconductive ICT Device Laboratory at the Kobe Frontier Research Center of theAdvanced ICT Research Institute of NICT), Dr. Yoshitaka Haribara (Senior Startup Machine
Learning and Quantum Solutions Architect, Amazon Web Services), Dr. Takefumi
Miyoshi(Director of e-trees.Japan, Inc., Specially Appointed Associate Professor, Center forQuantum Information and Quantum Biology at Osaka University, CTO of QuEL, Inc.), Dr.
Shintaro Sato (Head of Quantum Laboratory, Fujitsu Research, Fujitsu Limited), Dr. Yuuki
Tokunaga (Distinguished Researcher at NTT Computer & Data Science Laboratories),
Yosuke Ito (CEO of QuEL, Inc.), Keita Kanno (CTO of QunaSys Inc.), and Ryo Uchida(Chief Technologist of Systems Engineering Consultants Co.,LTD. (SEC)).

Related links
Center for Quantum Information and Quantum Biology, Osaka University
https://qiqb.osaka-u.ac.jp/en/
Research support
This research was supported by grants from:Japanese Ministry of Education, Culture, Sports, Science and Technology’s Quantum
Leap Flagship Program (MEXT Q-LEAP) "Research and Development ofSuperconducting Quantum Computers” (Team Leader: Yasunobu Nakamura; Grant
No. JPMXS 0118068682) and "Development of quantum software by intelligent

quantum system design and its applications” (Team leader: Keisuke Fujii; Grant No.
JPMXS 0120319794)
Japan Science and Technology Agency (JST) ERATO’s "Nakamura Macroscopic
Quantum Machine Project” (Team leader: Yasunobu Nakamura, Grant No.
JPMJER1601), the Program on Open Innovation Platforms for Industry-academia Cocreation (COI-NEXT) “Quantum Software Research Hub” (Team leader: Masahiro
Kitagawa, Grant No. JPMJPF2014), and Moonshot Target 6 "Development ofIntegrated Technology for Superconducting Quantum Circuits” (Team leader: Tsuyoshi
Yamamoto, Grant No. JPMJMS2067)

Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic
Innovation Promotion Program (SIP), “Promoting the application of advanced quantum
technology platforms to social issues” (Funding agency: QST)"Development andOperation of Test Beds with Domestic Quantum Computers” (Team leader: ShinichiYorozu)

Notes
1. Superconducting qubits
A quantum computing system that uses a Josephson junction, a tunnel junction
element, to realize quantum bits on an electronic circuit using a superconducting
material. Because of the small scale of the energy difference of the 0 or 1 qubit state, itis necessary to cool the qubits to extremely low temperatures (to about -273°C) in adilution refrigerator.
2. Quantum algorithm
An algorithm that can be run on a quantum computer. Quantum algorithms arerepresented by a sequence of qubits that are changed one after another into different
states or interact with other qubits.
3. “Japanese joint research group launches quantum computing cloud service” (pressrelease, March 24, 2023):
https://www.fujitsu.com/global/about/resources/news/press-releases/2023/0324-01.html

The SDGs goals most relevant to this project

About the Center for Quantum Information and Quantum Biology at Osaka University
The Center for Quantum Information and Quantum Biology consists of six research groups:
Quantum Computing, Transdisciplinary Quantum Science, Quantum Information Devices,
Quantum Communication and Security, Quantum Sensing, and Quantum Biology. QIQB
promotes transdisciplinary research between each of these research groups and with otheracademic fields. The Center is an international research hub for quantum innovation by
actively promoting international academic exchange and collaboration across borders.
QIQB seeks to play a key role in nurturing future quantum leaders and specialists througheducation and training. For more information: https://qiqb.osaka-u.ac.jp/en/
About RIKEN
RIKEN is Japan's largest research institute for basic and applied research. Over 2500
papers by RIKEN researchers are published every year in leading scientific and technology
journals covering a broad spectrum of disciplines including physics, chemistry, biology,engineering, and medical science. RIKEN's research environment and strong emphasis on
interdisciplinary collaboration and globalization has earned a worldwide reputation for
scientific excellence.
Website: www.riken.jp/en/
Facebook: www.facebook.com/RIKENHQ
X (formerly Twitter): @riken_en
About NICTAs the only public research institution of Japan that specializes in the field of information andcommunications technology, the National Institute of Information and Communications
Technology (NICT) promotes ICT R&D, from the foundational to the implementation, while
collaborating with universities, industry, and domestic and overseas research institutions.
NICT will be advancing R&D in the fields of advanced electromagnetic wave technology,
innovative networks, cybersecurity, universal communication, and frontier science.

Furthermore, NICT will also actively be promoting R&D in four strategic research fields(Beyond 5G, AI, quantum ICT, and cybersecurity), which are essential cutting-edge
technologies for next-generation ICT infrastructure for the early realization of Society 5.0. For
more information, visit https://www.nict.go.jp/en/.
About e-trees.Japan, Inc.
e-trees.Japan, Inc. provides solutions and implements applications with powerful hardwareand flexible software combinations. Our key concept is “Keep It Simple and Smart.” Weprimarily address R&D items, such as FPGA and network (with network protocol stack for
FPGAs implemented by ourselves), embedded systems, and systems with low power
consumption or renewable energy. Find out more: https://e-trees.jp/en/.

About Fujitsu
Fujitsu’s purpose is to make the world more sustainable by building trust in society
through innovation. As the digital transformation partner of choice for customers in over
100 countries, our 124,000 employees work to resolve some of the greatest challenges
facing humanity. Our range of services and solutions draw on five key technologies:
Computing, Networks, AI, Data & Security, and Converging Technologies, which we bring
together to deliver sustainability transformation. Fujitsu Limited (TSE:6702) reported
consolidated revenues of 3.7 trillion yen (US$28 billion) for the fiscal year ended March
31, 2023 and remains the top digital services company in Japan by market share. Findout more: https://www.fujitsu.com/.
About NTTNTT contributes to a sustainable society through the power of innovation. We are aleading global technology company providing services to consumers and business as amobile operator, infrastructure, networks, applications, and consulting provider. Ourofferings include digital business consulting, managed application services, workplaceand cloud solutions, data center and edge computing, all supported by our deep global
industry expertise. We are over $97B in revenue and 330,000 employees, with $3.6B inannual R&D investments. Our operations span across 80+ countries and regions,allowing us to serve clients in over 190 of them. We serve over 75% of Fortune Global
100 companies, thousands of other enterprise and government clients and millions ofconsumers.
NTT Service Innovation Laboratory Group Public Relations
nttrd-pr@ml.ntt.com

About QuEL, Inc.
QuEL, Inc. is an Osaka University-affiliated startup established in 2021. We are a teamof experienced researchers and engineers with various backgrounds, strongly
supporting quantum computing researchers to supply novel qubit controllers.
Find out more: https://quel-inc.com/
About QunaSys Inc.
QunaSys is a Japanese startup engaged in advancing algorithms in chemistry to drive
real-world applications of quantum technology. Our primary focus is on leveraging
quantum computing potential by collaborating on research with industry leaders andfostering a community-driven approach within the QPARC industry network. Our
flagship innovation, QURI, represents a user-friendly quantum computational web
software. This platform allows users without specialized quantum algorithm expertise toengage in quantum calculations seamlessly. Additionally, our QURI Parts act asessential building blocks, aiding in the assembly of quantum algorithms into efficientPython code. For more information, visit us at https://qunasys.com/en
About Systems Engineering Consultants Co.,LTD.
Systems Engineering Consultants (SEC) is a software development company
specialized in real-time technology, contributing to the safety and development ofsociety. We offer real-time software in four different business fields: mobile networking,internet technology, public infrastructure, and space, robotics and advancedtechnologies. Find out more: https://www.sec.co.jp/en/
Press contacts
Center for Quantum Information and Quantum Biology at Osaka University
Dr. Makoto Negoro (Associate Professor, Vice Director of the Center for Quantum Information
and Quantum Biology at Osaka University)
E-mail: negoro.sec[at]qiqb.osaka-u.ac.jp
https://qiqb.osaka-u.ac.jp
RIKEN
RIKEN Global Communications
pr@riken.jp

Tel: +81-(0)48-462-1225
Email: pr@riken.jp
NICT
Press OfficePublic Relations Department
E-mail: publicity@nict.go.jp
Amazon Web Services

Public Relations Division
E-mail: awsjp-pr [at] amazon.com
e-trees.Japan, Inc.

Takefumi Miyoshi
sales@e-trees.jp
Fujitsu
Public and Investor Relations Division
Inquiries:
https://www.fujitsu.com/global/about/resources/news/presscontacts/form/index.html
Company: Fujitsu Limited
NTT

NTT Service Innovation Laboratory Group Public Relations
nttrd-pr@ml.ntt.com
QuEL, Inc.

info@quel-inc.com
QunaSys Inc.

Public Relations Division
pr@qunasys.com
Systems Engineering Consultants Co.,LTD.

https://www.sec.co.jp/en/contact/contact3.html