Quantinuum Introduces InQuanto

Quantinuum Introduces InQuanto

to Explore Industrially Relevant Chemistry Problems on Today’s Quantum Computers

InQuanto, a state-of-the-art quantum computational chemistry software platform, is built for computational chemists seeking to push the boundaries of what is possible using today’s quantum computers.

Quantinuum, the global quantum computing company, today announced the release of InQuanto, a state-of-the-art quantum computational chemistry software platform that makes it easy for computational chemists to experiment with a wide range of quantum algorithms on today’s quantum computers.

InQuanto is available for the first time as a standalone platform to commercial organizations, bringing together the latest quantum computing tools in a single application. It was developed and deployed by Quantinuum’s quantum chemistry team to support collaborations with partners such as BMW, Honeywell, JSR, Nippon Steel Corporation, and TotalEnergies to explore quantum computing use cases specific to their industry. They have used it to understand the potential of quantum computing to improve the accuracy of complex molecular and materials simulations in their fields.

InQuanto enables users to mix and match the latest quantum algorithms, advanced subroutines, and chemistry-specific noise-mitigation techniques to make the best use of today’s quantum computers. The platform also helps computational chemists to break down larger industrially relevant systems into smaller fragments that can run on today’s small-scale quantum machines. It uses Quantinuum’s open-source toolkit TKET to reduce the computational requirements for electronic structure simulations and maximize performance across the widest range of quantum devices and simulators.

“Quantum computing offers a path to rapid and cost-effective development of new molecules and materials that could unlock novel answers to some of the biggest challenges we face,” said Patrick Moorhead, CEO and Chief Analyst of Moor Insights and Strategy. “The way to ensure progress is to start prototyping now, using real-world use cases, so that methods are tailored to solving actual needs of the industry. InQuanto is built to enable exactly this.”

BMW and Quantinuum have worked together using the InQuanto platform to simulate electrode reactions in hydrogen fuel cells, with the goal of achieving the highest fidelity on today’s machines. The collaboration has focused on modeling the oxygen reduction reaction. It has provided insights into how quantum computers could help with the future design of efficient catalysts and electrodes.

Elvira Shishenina, Quantum Computing Lead at BMW Group New Technologies and Innovation, said, “The path to future progress in materials modelling using quantum computers relies on a deep understanding of both the technology and our applications. Bringing together the fuel cells expertise and highly predictive quantum computing simulations could enhance the new materials development towards zero-physical prototyping.”

Through Quantinuum’s research and development (R&D) collaborations with global partners, the technology now available through InQuanto has led to the achievement of a number of firsts: it explored for the first time the quantification of drug-protein interactions using today’s emerging quantum devices; In a collaboration with Nippon Steel Corporation, it proved its capabilities in the simulation of materials such as iron crystals for steel development; and in a paper published with TotalEnergies, it was used to model metal-organic frameworks for carbon capture.

Ilyas Khan, CEO of Quantinuum said: “We are deeply excited about the news today. InQuanto is a perfect example of a product developed with the active support of the leaders across every sector deeply involved in quantum chemistry. We have created a dedicated quantum computing product for computational chemists looking for the bridge between classical computing, which they know well, and quantum techniques, which show so much promise.”​

Rei Sakuma, Principal Researcher of the Materials Informatics Initiative at JSR Corporation, said: “JSR entered into a close partnership with Quantinuum very early on. We participated in the beta testing of InQuanto (formerly EUMEN) and have used it primarily for research and development on novel materials and property prediction. InQuanto is very easy to use, even for researchers and engineers without a deep knowledge of quantum computing. In the future, we would like to use InQuanto not only in research and development but also in actual manufacturing sites, based on the premise of further performance improvement of quantum computers.”

In another project, Quantinuum, together with Honeywell, applied InQuanto to investigate the applicability of quantum computing to the design of novel refrigerants. These complex compounds, widely used in many industries, are chosen for properties such as low toxicity, low flammability, and stability, as well as low global warming potential (GWP) and no ozone depletion potential. Finding new, environmentally friendly refrigerants is a critical challenge for future sustainable solutions. The collaboration modeled a reaction between methane gas, a simple refrigerant, and a simple atmospheric radical using capabilities built into InQuanto.

Gavin Towler, Chief Technology officer for Honeywell PMT, said: “Honeywell is leaning forward to  understand how we use quantum computing capabilities for our business. Tools like InQuanto will play a valuable role in inventing and discovering new chemicals with improved environmental performance.”
Quantinuum is also partnering with Mitsui & Co. and building on its global industrial reach in order to accelerate the InQuanto offering to industrial customers and researchers in Japan and the broader Asia-Pacific region.

Simon Toda, General Manager of Digital Technology Strategy Dept., Integrated Digital Strategy Div. at Mitsui & Co., said: “We are extremely excited to be working with Quantinuum, a global pioneer of quantum computing. We believe the InQuanto platform will bring great innovation to the research and development activities in the chemical industry. With our broad business assets and unique position in the industry and region, we are supporting our customers to create new, innovative value together with Quantinuum.”



Read the introduction to InQuanto on Medium



Kortny Rolston-Duce
+1(208) 522 4809

Peter Sigrist
+44(0)7720 056 981

To learn more on how you can work with Quantinuum to jumpstart your use case exploration with the InQuanto platform, contact us at inquanto@quantinuum.com.
For more information on InQuanto, visit: www.quantinuum.com/products/inquanto. The InQuanto license can include access to the Quantinuum System Model H1, powered by Honeywell, ion trap-based quantum computing hardware.



Quantinuum is the world’s largest integrated quantum computing company, formed by the combination of Honeywell Quantum Solutions’ world-leading hardware and Cambridge Quantum’s class-leading middleware and applications.

Quantinuum employs over 400 people, including 300 scientists, at eight sites in the US, Europe, and Japan.

Science led and enterprise driven, Quantinuum accelerates quantum computing and the development of applications across chemistry, cybersecurity, finance, and optimization. Quantinuum’s 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.

Quantinuum’s open-source developer toolkit TKET provides platform-inclusive access to the world’s leading quantum hardware and simulators and enhances the performance of every Quantinuum product, including cybersecurity key-generation platform, Quantum Origin; quantum computational chemistry and materials science package, InQuanto; and λambeq, Quantinuum’s quantum natural language processing and computational linguistics toolkit.

Quantinuum’s H1 generation quantum computer, Powered by Honeywell, is one of the most advanced in the world and was the first to pass the industry standard quantum volume 4096 benchmark. In March 2020, Quantinuum (as Honeywell Quantum Solutions) committed to increasing the quantum volume of its commercial H-Series quantum computers by an order of magnitude each year for the subsequent five years.

The Honeywell Trademark is used under license from Honeywell International Inc. Honeywell International Inc. makes no representations or warranties with respect to this product. This product is produced by Quantinuum.



Our Technology


Cambridge Quantum is at the forefront of quantum algorithms and software development, enabling our partners and clients to attain the most value out of rapidly evolving quantum computing hardware. Our technology is currently employed by an ever expanding and global user base – from academia, through to governments and the world’s largest companies across the tech, energy, healthcare, finance, automotive, pharma and transportation sectors.

Quantum Cybersecurity

Quantum Origin is an industry-defining, cryptographic key generation platform that employs quantum computers to generate quantum-enhanced cryptographic keys. Using the Quantum Origin platform, both classical algorithms (e.g., RSA or AES) and post-quantum algorithms (e.g., CRYSTALS-Dilithium and Falcon) can be seeded to provide cryptographic keys that offer superior protection against even the most powerful of adversaries.

Quantum Software Development Toolkit

TKET is the leading, open-source development toolkit that enables state-of-the-art optimisation and manipulation of quantum circuits for NISQ devices. With platform agnosticism at its core, TKET is integrated with most commercially available quantum hardware platforms (e.g., IBM, Honeywell, Google, IonQ and others) and quantum programming tools (e.g., Cirq, Qiskit and Pennylane). TKET’s user base is growing exponentially, enabling more users across industry and academia to extract value from quantum hardware as it becomes increasingly available online.

Quantum Chemistry

InQuanto is built for computational chemists seeking to push the boundaries of what is possible using today’s quantum computers. Now available for the first time as a standalone software platform, InQuanto enables users to experiment with the latest quantum algorithms, advanced subroutines, and chemistry-specific noise-mitigation techniques to make the best use of today’s quantum computers for real-world use cases.

Quantum Algorithms

Our goal is to realise definitive and unequivocal quantum computational advantage as soon as possible – this motivates everything we do. Although we are ultimately interested in all quantum algorithms, at present, we have identified three problems which show promise for early quantum advantage, including Monte Carlo estimation, optimisation and solving Partial Differential Equations (PDEs). In each of these areas we are partnered with industry leaders to tailor best-in-class quantum solutions to problems at the very heart of their business.

Quantum Artificial Intelligence

Quantum Artificial Intelligence is one of the most promising and broadly impactful application areas of quantum computing. At Cambridge Quantum, we have adopted a unique and holistic approach to the development of QAI, simultaneously pioneering the highly interconnected areas of quantum machine learning, quantum natural language processing, quantum deep learning, combinatorial optimisation and sampling (i.e., Monte Carlo simulations) to build intelligence systems of the future.

Quantum Machine Learning

In collaboration with our industrial, academic and governmental partners, we design and engineer novel, application-motivated Quantum Machine Learning algorithms. To date, we have worked with a wealth of the world’s largest organisations to deploy purpose-built, QML algorithms across industries such as finance, healthcare, pharma, energy and logistics. Our resource-efficient and cross-platform capabilities enable us to extract the most from quantum devices today, propelling us ever closer to our goal of quantum advantage.

Quantum Natural Language Processing
Compositional Intelligence

The rapidly emerging field of Quantum Natural Language Processing (QNLP), and its underlying theoretical foundations, has been pioneered by the team at Cambridge Quantum. Our structural approach takes advantage of mathematical analogies between theoretical linguistics and quantum theory to design “quantum native” NLP pipelines. Combined with advances in Quantum Machine Learning (QML), we have successfully trained quantum computers to perform elementary text classification and question-answering tasks, paving the way for more scalable intelligence systems.

New Business

Cambridge Quantum empowers businesses, institutions, investors, partners and governments through quantum computing solutions which will radically transform virtually every sector and industry including drug development and discovery, materials science, healthcare and energy.

Our technologies extend to the areas of quantum chemistry, quantum cybersecurity, quantum artificial intelligence and quantum algorithms and are currently utilised by an expansive and ever-growing user base. The Cambridge Quantum ecosystem consists of global leaders in tech, computing, aerospace and energy across Europe, the USA and Japan.

Cambridge Quantum is open to building long-term collaborations and business partnerships.
If you believe that your organisation could benefit from working with our team, please field your interest using the contact information below.



Cambridge Quantum


Since our inception in 2014, our aim has been to positively transform the world using the power of quantum computing. Breakthroughs in drug discovery, healthcare, materials science, cybersecurity and energy will become possible as quantum computers become more powerful. We are one of the world’s foremost quantum computing companies, delivering science-led, enterprise-driven solutions to tackle hard problems across a range of industries.

Think like nature, compute like nature.

Science for humanity is at Cambridge Quantum’s core. We are motivated to find ethical solutions to questions – many of which are largely unanswered. Cambridge Quantum works with partners, which include large enterprises, research institutions and governments, to build and develop quantum computing solutions, and is a leading member of a rapidly growing quantum computing ecosystem.

Cambridge Quantum designs, engineers and deploys algorithms and enterprise level applications by taking cutting-edge research into solutions for solving real problems. TKET, our hardware-agnostic software development platform and other technologies are currently utilised by an ever-growing global user base.

The team at Cambridge Quantum has been developing the theoretical foundations of quantum computing for over 25 years. Our scientists have been responsible for and involved in breakthroughs in the fields of quantum chemistry, quantum artificial intelligence, quantum cybersecurity and quantum algorithms and quantum natural language processing. We have one of the world’s largest teams of researchers, developers and engineers working to democratise quantum computation and realise the benefits for the greatest possible number of people.

Unravelling nature’s source code one (qu)bit at a time.
This is quantum computing.


As a leading quantum computing software provider, Cambridge Quantum is on a mission to positively transform the lives we lead through quantum computation. By leveraging the industry’s latest, state-of-the-art hardware, we develop and deliver application-specific quantum software across the domains of quantum chemistry, quantum artificial intelligence and quantum cybersecurity.


Latest Publications


The Journal is by real people, for real people with eye level insights from Cambridge Quantum’s thinkers and doers. Through continuous dispatches, The Journal features vis-a-vis round table discussions from the world of quantum, gets up close and personal with quantum scientists and delves behind the scenes of everything quantum from around the globe.