Fujitsu Starts Official Development Of Plus-10,000 Qubit Superconducting Quantum Computer Targeting Completion In 2030

Development activities to be carried in part under NEDO project to advance the development of quantum computers towards industrialization

By Ron Chen, Bureau Chief, Bureau Chief, Asia

Fujitsu  has announced that it has started research and development towards a superconducting quantum computer with a capacity exceeding 10,000 qubits. Construction is slated for completion in fiscal 2030.

The new superconducting quantum computer will operate with 250 logical qubits and will utilize Fujitsu’s innovative “STAR architecture,” an early-stage fault-tolerant quantum computing (early-FTQC) architecture also developed by the company. Fujitsu aims to make practical quantum computing possible, particularly in areas like materials science where complex simulations can unlock groundbreaking discoveries, and to this end will focus on advancing key scaling technologies across various technical domains.

As part of this effort, Fujitsu has been selected as an implementing party for the “Research and Development Project of the Enhanced Infrastructures for Post-5G Information and Communication Systems”, publicly solicited by the NEDO (New Energy and Industrial Technology Development Organization). Fujitsu will be contributing to the thematic area of advancing the development of quantum computers towards industrialization. The project will be promoted through joint research with Japan’s National Institute of Advanced Industrial Science and Technology (AIST) and RIKEN, and will run until fiscal year 2027.

Fujitsu is committed to driving forward the development of practical and industrialized quantum computing solutions. After this 10,000-qubit machine is built, Fujitsu will further pursue advanced research initiatives targeting the integration of superconducting and diamond spin-based qubits from fiscal 2030 and aims to realize a 1,000 logical qubit machine in fiscal 2035 while considering the possibility of multiple interconnected quantum bit-chips.

Corporate Executive Officer, Corporate Vice President, CTO, in charge of System Platform, Fujitsu Limited, Vivek Mahajan comments: “Fujitsu is already recognized as a world leader in quantum computing across a broad spectrum, from software to hardware. This project, led by NEDO, will contribute significantly to Fujitsu’s goal of further developing a Made-in-Japan fault tolerant superconducting quantum computer. We would also be aiming to combine superconducting quantum computing with diamond spin technology as part of our roadmap. By realizing 250 logical qubits in fiscal 2030 and 1,000 logical qubits in fiscal 2035, Fujitsu is committed to leading the path forward globally in the field of quantum computing. Additionally, Fujitsu will be developing the next generation of its HPC platform, using its FUJITSU-MONAKA processor line, which will also power FugakuNEXT.  Fujitsu will further integrate its platforms for high-performance and quantum computing to offer a comprehensive computing platform to our customers.”

Technology development focus areas

Fujitsu’s research efforts will focus on developing the following scaling technologies.

High-throughput, high-precision qubit manufacturing technology:

Improvement of the manufacturing precision of Josephson Junctions, critical components of superconducting qubits which minimize frequency variations.

Chip-to-chip interconnect technology:

Development of wiring and packaging technologies to enable the interconnection of multiple qubit chips, facilitating the creation of larger quantum processors.

High-density packaging and low-cost qubit control:

Addressing the challenges associated with cryogenic cooling and control systems, including the development of techniques to reduce component count and heat dissipation.

Decoding technology for quantum error correction:

Development of algorithms and system designs for decoding measurement data and correcting errors in quantum computations.

Background

The world faces increasingly complex challenges that demand computational power beyond the reach of traditional computers. Quantum computers offer the promise of tackling these previously intractable problems, driving significant advancements across numerous fields. While a fully fault-tolerant quantum computer with 1 million qubits of processing power is considered the ultimate goal, Fujitsu is focused on delivering practical solutions in the near term.

Fujitsu’s commitment to quantum computing is underscored by its ongoing R&D efforts. In August 2024, in collaboration with the University of Osaka, Fujitsu unveiled its STAR architecture, a highly efficient quantum computing architecture based on phase rotation gates. This architecture paves the way for early-FTQC systems capable of outperforming conventional computers with only 60,000 qubits. On the hardware front, the RIKEN RQC-Fujitsu Collaboration Center, established in 2021 with RIKEN, has already yielded a 64-qubit superconducting quantum computer in October 2023, followed by a world-leading 256-qubit system in April 2025.

Scaling to even larger systems requires overcoming challenges such as maintaining high fidelity across multiple interconnected qubit chips and achieving greater integration of components and wiring within dilution refrigerators. In addition to its superconducting approach, Fujitsu is also exploring the potential of diamond spin-based qubits, which use light for qubit connectivity. Fujitsu is conducting research in this area in collaboration with Delft University of Technology and QuTech, a leading quantum technology research institute, which has resulted in the successful creation of highly accurate and controllable qubits.

Siemens tech protects cultural assets at Berlin State Library and cuts costs and emissions

Extension of decarbonization program with German Federal Government saw ‘Staatsbibliothek zu Berlin’ (Berlin State Library) retrofitted, without using own financial resources

Services as well as building technology support national climate goals to reduce CO₂ emissions of government-owned assets by 65 percent by 2030

Guaranteed energy cost savings of €19.8m within 10 years and yearly CO₂ emissions reduction of 3,745 tons

Siemens has already successfully implemented retrofits to seven cultural buildings, resulting in nearly €25m gross energy savings

Siemens Smart Infrastructure implemented smart building technology at the ‘House Potsdamer Strasse’ of the ‘Staatsbibliothek zu Berlin’ (Berlin State Library), Germany, and since then has continued with its services to enhance sustainability and energy efficiency at the site. The project ensures a constant indoor climate at the library to preserve its valuable cultural assets even better. The contract is an extension of a larger decarbonization programme with the German Federal Government, which already saw seven cultural properties, including museums, galleries and libraries, retrofitted by Siemens since 2007. The contract supports the national climate protection programme to reduce CO₂ emissions of government-owned assets by 65 percent by 2030 compared to 1990 levels.

Staatsbibliothek Berlin Lesesaal

Siemens Smart Infrastructure implemented smart building technology at the ‘House Potsdamer Strasse’ of the ‘Staatsbibliothek zu Berlin’ (Berlin State Library), Germany, and since then has continued with its services to enhance sustainability and energy efficiency at the site.

The extension of the programme for the Berlin State Library includes energy consumption analysis and reduction planning as well as technology implementation, operations and services. To help the library to reach its decarbonization targets, Siemens deployed advanced building technology. This includes the company’s comprehensive building automation system Desigo, room operator units, sensors and detectors, as well as a cloud-based energy and asset management platform, powered by Siemens’ digital building platform, Building X. In addition, Siemens ensures optimized process control through Heating Ventilation and Air Conditioning (HVAC) products, including flexible supply air control and a connection to district cooling with a total output of 2.5 megawatts. Furthermore, 5,300 LED lights have been installed.

“The Berlin State Library has a rich history spanning more than 360 years. To preserve its valuable, high-diversity assets even better, it requires consistent environmental parameters. Siemens is delighted to supply the technology that enables it to sustain these conditions, while also reducing energy consumption by 52 percent,” said Executive Vice President, Sustainability, Siemens Smart Infrastructure Buildings Constantin Ginet. “The latest contract, focused on services, builds on the success of the initial phase of the project. With guaranteed energy cost savings fully financing all project costs, this cooperation serves as a blueprint for reaching sustainability targets for millions of cultural facilities around the globe.”

“Siemens’ holistic approach, deep expertise, and innovative financing model make it a perfect match to help us – and the national program – to achieve substantial energy savings and sustainability improvements, while still maintaining the optimal conditions required to safeguard our priceless cultural heritage through continuous monitoring,” Deputy General Director at Staatsbibliothek zu Berlin, Reinhard Altenhöner added.

Since 2007 Siemens has supported seven of Berlin’s cultural institutions to achieve remarkable sustainability results, including an outcome of nearly €25m gross energy savings, and eliminating around 3,745 tons of annual CO₂ emissions. With the completion of the tech implementation at the eighth facility, the Berlin State Library, the collaboration results in a total of around €45m gross energy savings and eliminating around 11,745 tons of annual CO₂ emissions, while continuing with constant energy monitoring and data-based advisory services for all eight buildings.

Building X is a digital building platform that supports customers to digitalize, manage, and optimize their building operations, paving the way for sustainable, autonomous, and profitable assets. It is part of Siemens Xcelerator, an open digital business platform that enables customers to accelerate their digital transformation easier, faster and at scale.