Fujitsu Limited (Fujitsu) and Yaqumo Inc. (Yaqumo) today revealed that they have actually started confirming quantum computing architectures and standard software application on real neutral-atom quantum computer systems [1] to speed up the useful usage of quantum computer systems.

Fujitsu will integrate its “STAR architecture [2],” a quantum computing architecture established mainly for superconducting quantum computer systems in the Early-FTQC (Fault-Tolerant Quantum Computer) period [3]and “Open Quantum Toolchain for OPerators and Users [4],” an open-source software application that covers whatever from environment setup to operation essential for quantum computer system cloud services, with Yaqumo’s neutral-atom quantum computer systems presently under advancement. This partnership intends to speed up the improvement of both innovations by evaluating them on real hardware.

Because April 2026, both business have actually been carrying out theoretical research studies as part of their joint research study on the applicability of STAR architecture and associated innovations to neutral-atom quantum computer systems, which vary from superconducting types. They started checking on a real device in August 2026.

Through this joint research study, the 2 business will integrate their strengths to establish varied quantum computing innovations, therefore adding to the useful release of quantum computing services that attend to social difficulties.

Neutral-atom quantum computer systems are identified by their ease of accomplishing all-to-all connection in between qubits. This broadens the possibilities for computational techniques that vary from those utilized in other methods, such as superconducting quantum computer systems, where qubit connection is constrained. This might likewise allow a more effective quantum mistake correction. Research study and advancement of software application and architectural innovations that optimize these attributes are vital.

Fujitsu has actually been participated in a vast array of research study and advancement focused on recognizing useful quantum computing innovations, from quantum hardware such as superconducting qubits to standard quantum computer system software application, FTQC, and research study into quantum computing architectures for the Early-FTQC period. Fujitsu will now carry out and validate the STAR architecture utilizing neutral-atom quantum computer systems, promoting R&D with an eye towards the shift to FTQC. By adjusting Open Quantum Toolchain for OPerators and USers to neutral atom quantum computer systems, users will be able to run numerous types of quantum computer systems through a combined user interface, thus promoting the prevalent adoption of quantum computer systems.

Yaqumo is a start-up took part in the research study and advancement of quantum hardware utilizing ytterbium neutral-atoms. The business intends to establish a working system with more than a number of hundred qubits and quantum mistake correction abilities by 2027.

For the useful awareness of quantum computer systems, several hardware techniques are competitively advancing. In research study and advancement focused on social application, it is vital to broadly check out the possibilities of varied quantum computer system innovations. In this joint research study, Fujitsu’s quantum software application and architecture innovations will be integrated with Yaqumo’s neutral-atom quantum computer systems and confirmed on real hardware to check out brand-new technological possibilities that utilize the distinct qualities of neutral-atom systems.

While the STAR architecture has the prospective to considerably decrease the variety of qubits needed for quantum calculation, its efficiency differs considerably depending upon the kind of quantum computer system. By validating the STAR architecture on real neutral-atom quantum computer systems, this job will assess its compatibility with genuine hardware, which can not be verified through theoretical research studies alone. It will likewise check out the possibility of accomplishing useful quantum calculation with less qubits by leveraging the distinct attributes of neutral-atom systems. If effective, this is anticipated to pave a brand-new course for enhancing efficiency while restricting the hardware scale needed for the useful application of quantum computer systems.

Because the commands sent out to neutral-atom quantum computer systems vary from those for superconducting quantum computer systems, it is needed to adjust the command conversion, task management, and gadget status tracking and calibration functions to the neutral-atom control system. In this joint research study, Fujitsu’s Open Quantum Toolchain for OPerators and USers, established by Fujitsu and other partners, an open-source standard software application for quantum computer systems, will be adjoined with Yaqumo’s neutral-atom quantum computer systems. This will produce an environment where external users can access neutral-atom quantum computer systems by means of the cloud, intending to understand a platform that can manage various kinds of quantum computer systems with a merged user interface.

Remark from Kazuhiro Nakashoji, CEO, Yaqumo Inc.

Our company believe that Fujitsu’s competence in architecture style and cloud facilities, collected through its deal with superconducting and diamond spin quantum computing, will highly support our research study and advancement of neutral-atom quantum computer systems. Through presentations including connection with Open Quantum Toolchain for OPerators and USers and other Early-FTQC period innovations such as the STAR architecture, we intend to build up technical competence that even more opens the capacity of neutral-atom quantum computing. This joint research study will progressively advance our efforts towards understanding FTQC.

Remark from Shintaro Sato, Fellow and Head of Quantum Laboratory, Fujitsu Research, Fujitsu Limited

For the useful application of quantum computing, it is vital to advance research study and advancement on both ingenious hardware innovations and architectural and software application innovations that optimize their capacity. We have high expectations that confirming the compatibility of Yaqumo’s neutral-atom quantum computer systems with the STAR architecture and Open Quantum Toolchain for OPerators and USers through screening on real hardware will result in the facility of effective quantum computing approaches and boosted gain access to and running environments. Through this joint research study, we intend to obtain brand-new insights leveraging the attributes of neutral-atom quantum computer systems and add to the advancement of quantum computing innovations for the FTQC and Early-FTQC ages.

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[1] Neutral-atom quantum computer system:
A kind of quantum computer system that optically traps neutral atoms cooled to incredibly low temperature levels with lasers and controls them with laser light. It is defined by high scalability and long coherence times, and is bring in attention as a platform ideal for developing massive quantum systems.
[2] STAR architecture:
Short for “Space-Time efficient Analog Rotation quantum computing architecture,” it is a quantum computing architecture that allows extremely effective phase-rotation gates. By substantially minimizing the variety of qubits needed for approximate angle stage rotation, which is essential for understanding quantum computer systems, it is anticipated to speed up the useful application of quantum computer systems that exceed the computational efficiency of existing computer systems.
[3] Early-FTQC period:
An age in which just 10s of countless qubits can be carried out, and fault-tolerant quantum calculation is not yet totally possible. FTQC (Fault-Tolerant Quantum Computer) is a quantum computer system geared up with functions to proper mistakes that take place throughout quantum calculation.
[4] Open Quantum Toolchain for OPerators and Users:
Fujitsu open-sourced and launched on GitHub Open Quantum Toolchain for OPerators and USers, a core software application suite covering whatever needed for quantum computer system cloud services, from execution environment setup to functional management.

About Fujitsu

Fujitsu’s function is to make the world more sustainable by constructing rely on society through development. As the digital improvement partner of option for consumers around the world, our 100,000 workers work to solve a few of the best difficulties dealing with humankind. Our variety of services and services make use of 5 crucial innovations: AI, Computing, Networks, Data & & Security, and Converging Technologies, which we unite to provide sustainability improvement. Fujitsu Limited (TSE:6702) reported combined earnings of 3.5 trillion yen (US$ 23 billion) for the ended March 31, 2026 and stays the leading digital services business in Japan by market share. Learn more: global.fujitsu

About Yaqumo Inc.

Yaqumo Inc. is a Japan-based quantum innovation start-up establishing scalable quantum computer systems utilizing a cold-atom architecture. Through hardware– software application co-design, Yaqumo intends to understand useful fault-tolerant quantum computing.
Business name: Yaqumo Inc.
Area: 2nd Floor, Marunouchi Nijubashi Building, 3-2-2 Marunouchi, Chiyoda-ku, Tokyo 100-0005, Japan
Agent: Kazuhiro Nakashoji, Representative Director and CEO
Developed: April 1, 2025
Service: Development of neutral-atom quantum computer systems
Designer of Neutral Atom Quantum Computers|Yaqumo Inc.

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