For the First Time Ever, Quantinuum’s New H2 Quantum Computer Has Created Non-Abelian Topological Quantum Matter and Braided its Anyons
The controlled creation and manipulation of non-Abelian anyons leading to topological qubits represents a significant step towards universal fault-tolerant quantum computing
Broomfield, Colorado, May 9th, 2023 — Quantinuum is proud and excited to announce this significant step towards fault-tolerant quantum computing. This achievement has been uniquely enabled by the release of Quantinuum’s System Model H2 - the highest performing quantum computer ever built.
The official launch of Quantinuum’s H2 quantum processor, Powered by Honeywell, follows extensive pre-launch work with a variety of global partners and was essential to the controlled creation and manipulation of non-Abelian anyons. The precise control of non-Abelian anyons has been long held as the path to using topological qubits for a fault-tolerant quantum computer.
Tony Uttley, President and COO of Quantinuum, stated “With our second-generation system, we are entering a new phase of quantum computing. H2 highlights the opportunity to achieve valuable outcomes that are only possible with a quantum computer. The development of the H2 processor is also a critical step in moving towards universal fault-tolerant quantum computing.”
He added, “This demonstration is a beautiful proof point in the power of our H-Series hardware roadmap and reinforces our primary purpose which is to enable our customers to tackle problems that were previously beyond the reach of classical computers. The implications for society are significant and we are excited to see how this technology truly changes the world."
One of the first experiments conducted on H2 by scientists from Quantinuum, in collaboration with researchers from Harvard University and Caltech, demonstrated a new state of matter, a non-Abelian topologically ordered state. This is an area of expertise that has been pursued in “stealth mode” for some years within Quantinuum, with the core team based in Munich and led by Dr. Henrik Dreyer.
Due to the differentiating features and precision control of the H2 processor, the topological state (that is essentially a qubit with limited gate capacity) was created in a way where its properties could be precisely controlled in real-time, demonstrating the creation, braiding and annihilation (measurement) of non-Abelian anyons.
The results, which were published today in a pre-print of a detailed scientific paper that has been made available on Nature, details Quantinuum’s work. This work opens up exciting new fields of research within condensed matter physics, which would have been impossible using a classical computer alone. Together with other QEC codes (found here and here), we have demonstrated, this achievement shows that it is only a matter of time until the Quantinuum hardware demonstrates the best path to fault-tolerance.
“Fault-tolerant quantum computing is our ultimate aim. Our world leadership in quantum computing continues to be showcased and proven by real advances, and the creation and manipulation of non-Abelian anyons to create topological qubits is another example that when incredible tools are given to brilliant people, they will find something amazing to do with them,” said Ilyas Khan, Founder and Chief Product Officer at Quantinuum. “This could well be a transistor moment for the quantum computing industry – and the fact that we have used a quantum computer as the machine tool for building topological qubits that are a significant step towards fault-tolerant quantum computing is further testimony to our long-held belief that quantum systems are best explored and created by other quantum systems. This is precisely what Feynman anticipated in his now famous remarks that are so often quoted as foundations for quantum computing.”
He added, “We are looking forward to building on this critical breakthrough. These are exciting times ahead for the whole industry and we have some further milestones that we can’t wait to share with the world.”
Innovations in H2
The H2 features initially include 32 fully-connected, high-fidelity qubits and an all-new architecture that advances the System Model H1’s linear design (with a new ion trap whose oval shape resembles a “racetrack”). Quantinuum showcased the H2’s capability by demonstrating a 32-qubit GHZ state (a non-classical state with all 32 qubits globally entangled), the largest on record.
The unique “racetrack” design of the System Model H2 enables all-to-all connectivity between qubits, meaning that every qubit in the H2 can directly be pairwise entangled with any other qubit in the system. Near-term doing so reduces the overall errors in algorithms, and long term opens up additional opportunities for new, more efficient error correcting codes – both critical for continuing to accelerate the capabilities of quantum computing. When combined with the demonstration of controlled non-Abelian anyons, the integrated achievement highlights an important step in topological quantum information storage and processing.
Additionally, the new design is a powerful step towards showing the scaling potential of ion-trap devices. Not only is H2 a demonstration of the scaling power of ion traps in the quantum charge coupled device (QCCD) architecture: showing the ability to simultaneously scale qubit number while maintaining performance, it also contains new technologies that pave the way for further scaling in subsequent generations. Similar to the first-generation systems, H2 is designed to accommodate future upgrades over its product lifecycle, meaning that qubit number and qubit quality will both be improved upon.
Built on the proven foundations of Quantinuum’s H-Series, the System Model H2, includes numerous hallmark features that collectively set it apart from other types of quantum computers: all-to-all connectivity, qubit reuse, mid-circuit measurement with conditional logic, industry leading high-fidelity qubit operations, and long coherence times. Additionally, the impressive performance gains of the System Model H1 to achieve repeatedly increasing Quantum Volume (QV) records is expected to continue with H2. H2 launches with a Quantum Volume 65,536 surpassing the last record announced using H1-1 in February of this year.
Using the H2 Today
Besides the headline breakthrough, the H2 has already been active in experimental studies by a range of organizations and companies, with notable results:
- Global Technology Applied Research at JPMorgan Chase has published a scholarly paper on the quantum optimization algorithm design for portfolio optimization, with numerical results successfully validated on H2 during early access.
- Quantinuum’s machine learning team demonstrated a new heuristic optimization routine that can solve optimization problems with minimal quantum resources.
These recent studies are available in individual technical papers here. A separate published paper describing the H2 features, benchmarking, and comparisons to other hardware, along with details on world record entanglement, can be found here. All technical papers will be submitted to the scientific peer review process.
The H2 is available now through cloud-based access from Quantinuum and will be available through Microsoft Azure Quantum beginning in June. Additionally, a noise-informed emulator of H2 is made possible through NVIDIA’s cuQuantum SDK of optimized libraries and tools, which help accelerate quantum computing simulation workflows.
Dr. Rajeeb (Raj) Hazra, CEO of Quantinuum said, “For anyone who thought that quantum computers that are able to push forward the boundaries of human knowledge and scientific progress are still in the far distance, today marks a turning point. A world leading team of scientists have used Quantinuum’s H2 quantum computer to achieve something that was previously not possible.” He went on to comment, “The H2 provides a breakaway moment for Quantinuum. Our second-generation quantum computer powered by the H2 quantum processor and associated software, delivers the industry's best performance today, while laying the groundwork for significantly accelerating the path for fault-tolerant quantum computing.”
About Quantinuum
Quantinuum is the world’s largest standalone quantum computing company, formed by the combination of Honeywell Quantum Solutions’ world-leading hardware and Cambridge Quantum’s class-leading middleware and applications. Science-led and enterprise-driven, Quantinuum accelerates quantum computing and the development of applications across chemistry, cybersecurity, finance and optimization. Its focus is to create scalable and commercial quantum solutions to solve the world’s most pressing problems in fields such as energy, logistics, climate change, and health. The company employs over 480 individuals, including 350+ scientists and engineers, at eight sites across the United States, Europe, and Japan. For more information, please visit www.quantinuum.com.
The Honeywell trademark is used under license from Honeywell International Inc. Honeywell makes no representations or warranties with respect to this service.
About Quantinuum
Quantinuum, the world’s largest integrated quantum company, pioneers powerful quantum computers and advanced software solutions. Quantinuum’s technology drives breakthroughs in materials discovery, cybersecurity, and next-gen quantum AI. With over 500 employees, including 370+ scientists and engineers, Quantinuum leads the quantum computing revolution across continents.
Source: PRNewswire - Honeywell
Charlotte, N.C., Jan. 14th 2026 — Honeywell (NASDAQ: HON) today announced that Quantinuum LLC ("Quantinuum" or the "Company"), which is majority owned by Honeywell, plans to make a confidential submission of a draft registration statement on Form S-1 to the U.S. Securities and Exchange Commission (the "SEC") relating to the proposed initial public offering of Quantinuum's common stock. The number of shares to be offered and the price range for the proposed offering have not yet been determined. The offering is subject to market and other conditions and the completion of the SEC's review process.
This press release is being made pursuant to, and in accordance with, Rule 135 under the Securities Act of 1933, as amended (the "Securities Act"), and shall not constitute an offer to sell, or the solicitation of an offer to buy, any securities. Any offers, solicitations or offers to buy, or any sales of securities, will be made in accordance with the registration requirements of the Securities Act.
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With the industry's most advanced quantum systems and proven ability to scale, Quantinuum is on track to deliver utility-scale quantum computing by early 2030s
November 6, 2025 – Broomfield, CO – Quantinuum, the world leader in quantum computing, has been selected by the Defense Advanced Research Projects Agency (DARPA) as a contractor to advance to Stage B of DARPA’s Quantum Benchmarking Initiative (QBI).
DARPA is using QBI to evaluate the technical likelihood that a utility scale quantum computer will be available no later than 2033. A multi-stage program, Stage B follows a six-month Stage A effort in which Quantinuum developed and delivered a detailed concept design for a utility scale system called “Lumos.”
Last year, Quantinuum released its public roadmap through the end of the decade with Apollo—a universal, fully fault-tolerant quantum computer—scheduled for launch in 2029. Lumos is a new addition to the roadmap as Quantinuum outlines plans to develop increasingly larger systems into the 2030s.
“This selection recognizes the strength and maturity of our roadmap and the work our teams have already delivered,” said Dr. Rajeeb Hazra, President and CEO of Quantinuum. “Lumos extends our roadmap into the next decade and gives DARPA a concrete, de-risked path for achieving utility-scale quantum computing by 2033. We look forward to partnering with DARPA and our ecosystem partners to advance this important national objective.”
Stage B will be a year-long, performance-based evaluation by DARPA’s Test and Evaluation team in which Quantinuum will develop a detailed R&D roadmap for Lumos to validate technical assumptions, verification methods, and scaling plans to meet the 2033 objective.
Yesterday, Quantinuum deployed its latest generation system, “Helios,” on schedule with its roadmap. With the highest fidelity physical qubits and logical qubits of any commercial system, and a next-generation software stack featuring a modern, high-level programming language, Helios is designed to accelerate quantum computing adoption. The system has already been used to simulate high-temperature superconductivity and magnetism at unprecedented scales—two applications with relevance to critical, industrial utility.
About Quantinuum
Quantinuum is the world leader in quantum computing. The company’s quantum systems deliver the highest performance across all industry benchmarks. Quantinuum’s over 630 employees, including 370+ scientists and engineers, across the US, UK, Germany, and Japan, are driving the quantum computing revolution.
For more information, please visit www.quantinuum.com
New collaboration to position Singapore as a leading global hub for quantum computing
Quantinuum to bring state-of-the-art Helios quantum computer to Singapore in 2026 and establish R&D and Operations Centre to advance talent development and commercial innovation
Singapore, November 6th, 2025 – Singapore’s National Quantum Office (NQO), a national platform hosted by the Agency for Science, Technology and Research (A*STAR), and Quantinuum, the world’s leading quantum computing company, today announced a strategic partnership to accelerate quantum computing in Singapore.
The partnership marks a key milestone under Singapore’s National Quantum Strategy, led by NQO, and will advance quantum hardware, software and talent development through Singapore’s National Quantum Computing Hub (NQCH). The NQCH and Quantinuum will work together to strengthen Singapore’s position as a top global quantum computing hub, accelerate innovation with industry users across pharmaceuticals, materials science and finance, and nurture world-class talent.
Singapore to Become First Country Outside of the United States to Host the World-Class Quantinuum Helios System
The installation of the Helios system in Singapore, expected to be completed in 2026, will give researchers direct access to Quantinuum’s Helios computing capabilities, supporting deeper research collaboration and innovation. Effective immediately, researchers will gain cloud access to Helios that enables key research and capability building.
As a full-stack offering, Helios is one of the most advanced commercial quantum computers today. The Helios platform unites a fully connected physical and logical qubit architecture with industry-leading fidelity and a next-generation software stack featuring a modern, high-level programming language, Helios is designed to accelerate quantum computing adoption.
Deepening Collaboration through Quantinuum’s R&D and Operations Centre in Singapore
Quantinuum will establish a new R&D and Operations Centre in Singapore to collaborate with Singapore’s research and innovation ecosystem. The Centre will serve to unify Quantinuum staff and local researchers and industry partners in co-developing end-to-end middleware and applications that bridge classical and quantum systems. Through these efforts, the Centre aims to accelerate the translation of quantum technologies into commercially relevant solutions, while building long-term R&D capabilities in quantum computing and its applications.
Strengthening Singapore’s Quantum Ecosystem through Industry Collaboration and Talent
The partnership will foster a thriving quantum ecosystem in Singapore through industry programs and talent development. These include internships and co-organized workshops and conferences to accelerate skills transfer and build a strong pipeline of quantum specialists.
Quantinuum will collaborate with industry end-users in Singapore to co-develop advanced quantum computing applications that address real-world challenges. Initial programs under the strategic partnership will target areas such as:
- Computational biology, bioinformatics, and drug discovery
- Financial modeling and optimization
- Advanced materials and chemistry
- Combinatorial optimization
Collectively, the initiatives aim to nurture a community of researchers, engineers and developers equipped to advance quantum computing and strengthen collaboration across Singapore’s research and industry ecosystem.
A Strategic Journey of Collaboration between Singapore and Quantinuum
- Mr. Ling Keok Tong, Executive Director of the National Quantum Office: “This partnership marks an important step in building Singapore as a leading quantum computing hub. Through the National Quantum Computing Hub, we are advancing quantum-enabled applications in sectors such as healthcare, materials science, and finance. Working with Quantinuum will accelerate this progress, deepen local capabilities, and position Singapore as a leading quantum computing hub in the region, driving real-world outcomes.”
- Dr. Rajeeb Hazra, President & CEO of Quantinuum: “Singapore has demonstrated remarkable foresight in recognizing the transformative power of quantum computing in this next phase of technological progress. Quantinuum is proud to work in partnership with Singapore to advance the frontiers of quantum computing, providing direct access to the most powerful computational capabilities ever developed. Together, we’re strengthening a hub that will accelerate the commercialization of quantum computing, enabling industries to rapidly turn breakthrough technology into real-world solutions.”
- Mrs. Josephine Teo, Minister for Digital Development and Information, and Minister-in-Charge of Cybersecurity & Smart Nation Group: “Singapore continues to invest significantly in quantum to strengthen our digital growth and security. We do this by collaborating with global partners on frontier tech, developing, and attracting world-class talents, and uplifting our local workforce and enterprises. Together, we hope to shape a more prosperous and safe future for Singapore and the world – where technology serves the public good.”
This strategic partnership builds on Quantinuum’s ongoing collaboration with Singapore’s quantum ecosystem, following two earlier agreements inked in 2024. These collaborations, which also involved the A*STAR Bioinformatics Institute (A*STAR BII) and Duke-NUS Medical School, laid the groundwork for this next phase of collaboration.
For media queries and clarifications, please contact:
Quah Sheryl
Agency for Science, Technology and Research (A*STAR)
Corporate Communications
Mobile: +65 9113 7937
Email: Sheryl_Quah@a-star.edu.sg
About Quantinuum
Quantinuum is the world leader in quantum computing. The company’s quantum systems deliver the highest performance across all industry benchmarks. Quantinuum’s over 630 employees, including 370+ scientists and engineers, across the US, UK, Germany, and Japan, are driving the quantum computing revolution. For more information, please visit www.quantinuum.com
Quantinuum Helios, Powered by Honeywell, reflects that the Helios ion trap was manufactured by Honeywell. The Honeywell trademark is used under license from Honeywell International, Inc. Honeywell makes no representations or warranties with respect to this service.
About the National Quantum Office
The National Quantum Office (NQO) was established with the support of the National Research Foundation (NRF) to drive the development and implementation of the Research, Innovation and Enterprise (RIE) strategy for Quantum in Singapore. The Office was set up in April 2022 and is hosted by A*STAR, the Implementing Agency for Quantum. NQO, as a control tower, supports fundamental and translational research in Quantum through various strategic programmes that it oversees. It partners both public and private sectors to create a vibrant RIE quantum ecosystem in Singapore. For more information, visit https://nqo.sg.
About the National Quantum Computing Hub
The National Quantum Computing Hub (NQCH) is Singapore’s national initiative for advancing quantum software and applications. The hub is building foundational capabilities, providing access to quantum computers, and driving public-private partnerships.
NQCH pursues practical quantum advantage across high-impact fields, including quantum chemistry, computational biology, finance and optimisation. The Hub also runs a programme to develop talent for the emerging quantum industry.
NQCH is a joint effort by Singapore’s Centre for Quantum Technologies (CQT), A*STAR Institute of High Performance Computing (A*STAR IHPC), and the National Supercomputing Centre (NSCC) Singapore.
For more information, visit: nqch.sg