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EDF, Alice & Bob, Quandela and CNRS Partner to Optimize Quantum Computing’s Energy Efficiency

The French electric utility company EDF, along with quantum computing companies Quandela and Alice & Bob, and the French National Centre for Scientific Research (CNRS), have signed an agreement to collaborate on an innovative project to optimize energy consumption in quantum computing. The project, named “Energetic Optimisation of Quantum Circuits” (OECQ), will, in the first…

PARIS, France, July 10th, 2024 – The French electric utility company EDF, along with quantum computing companies Quandela and Alice & Bob, and the French National Centre for Scientific Research (CNRS), have signed an agreement to collaborate on an innovative project to optimize energy consumption in quantum computing.

The project, named “Energetic Optimisation of Quantum Circuits” (OECQ), will, in the first phase, compare the energy requirements of high-performance computing (HPC) systems with those of quantum computers. This analysis will be based on relevant industry use cases and the advanced computations they require. This part of the project will provide the first measurement of energy consumption for the full stack of a quantum computer.

In the second phase, the project will focus on optimizing the energy consumption of quantum computers, addressing not only the energy required by the quantum processing unit (QPU) per se but also that of the auxiliary technologies powering the QPU, which are expected to make up a relevant share of the total quantum system consumption. 

The OECQ project gathers a cross-disciplinary team, pooling together fundamental research and industry R&D:

  • EDF, a major player in energy transition[1], offers industry use cases, as well as classical and quantum computing expertise. EDF will identify the relevant use cases that demand intensive computing power and therefore potentially high energy consumption.
    Drawing on its experience in algorithm development, EDF decided to establish a team of quantum computing researchers in 2017 to test the computational and energy performance of these future machines. This aligns with EDF’s Responsible Digital Group [2] approach adopted since 2021.
  • Alice & Bob specializes in quantum processing unit and algorithm development. They will test the energy needs of their innovative superconducting qubit architecture, the cat qubit.
  • Quandela is a leader in photonic quantum computing providing industry-grade hardware and software solutions. Their platform is based on semiconductor qubit devices and integrated photonics.

    Alice & Bob and Quandela will estimate the energy consumption that a quantum algorithm would require for the selected use cases if solved using their current quantum systems. They will then leverage the insights gained, to build and test new, more energy-efficient quantum processor prototypes.
  • The CNRS Quantum Energy Team |QET> has provided the first methodology to tackle energy costs of the full stack of a quantum computer and plays a leading role in the development of a standard of energy efficiency at the IEEE.

Throughout the whole project, CNRS will ensure methodological excellence and compute the theoretical bounds for energy consumption.

The project, with a total cost of €6.1M, is supported up to €4.5M by a France 2030 grant operated on behalf of the French state by Bpifrance, France’s public investment bank.

One of the primary objectives of the OECQ project is to seize the opportunity to develop quantum computing technology in an energy-efficient manner from the outset,” said Théau Peronnin, CEO of Alice & Bob. “As quantum computing is still in its nascent stages, this project will dimension the future energy infrastructures that will support mature quantum technology. Additionally, since energy consumption is a key cost driver in quantum tech, making these processes more efficient offers a significant competitive advantage.

EDF is committed to the promotion of a responsible and low-carbon digital transformation. Since 2018, EDF has been involved in evaluating the benefits of quantum for our businesses. This technology brings key advantages both in terms of computational speed and energy optimization,” said Joseph Mikael, Head of Quantum Computation.

As co-founders of the Quantum Energy Initiative, our CNRS team is extremely excited by OECQ project, which is the first large project devoted to the exploration of a quantum energetic advantage in real quantum computers. It will consolidate the lead of France in quantum energetics and bring into existence a new way of practicing responsible innovation, which takes into account the fact that energetic resources are finite,” said Alexia Auffèves, CNRS Senior Scientist.

We recognize that energy efficiency is paramount in the development of quantum computing technology,” said Niccolo Somaschi, CEO of Quandela. “As we push the boundaries of what is possible, it’s crucial that we do so in a sustainable manner.

EDF Contact:
Joseph MIKAEL
joseph.mikael@edf.fr

Alice & Bob Contact:
HKA MarCom
Luke KEDING
luke@hkamarcom.com

Quandela Contact:
Marine-Xech Gaspa
marine.xech-gaspa@quandela.com

About EDF

The EDF Group is a key player in the energy transition, as an integrated energy operator engaged in all aspects of the energy business: power generation, distribution, trading, energy sales and energy services. The Group is a world leader in low-carbon energy, with a low carbon output of 434TWh, a diverse generation mix based mainly on nuclear and renewable energy (including hydropower). It is also investing in new technologies to support the energy transition. EDF’s raison d’être is to build a net zero energy future with electricity and innovative solutions and services, to help save the planet and drive well-being and economic development. The Group supplies energy and services to approximately 40.9 million customers and generated consolidated sales of €139.7 billion in 2023. Customers are counted per delivery site. A customer may have two delivery points. 

About Alice & Bob

Alice & Bob is a quantum computing company based in Paris and Boston whose goal is to create the first universal, fault-tolerant quantum computer. Founded in 2020, Alice & Bob has already raised €30 million in funding, hired over 95 employees and demonstrated experimental results surpassing those of technology giants such as Google or IBM. Alice & Bob specializes in cat qubits, a pioneering technology developed by the company’s founders and later adopted by Amazon. Demonstrating the power of its cat architecture, Alice & Bob recently showed that it could reduce the hardware requirements for building a useful large-scale quantum computer by up to 200 times compared with competing approaches. Alice & Bob cat qubit is available for anyone to test through cloud access. Follow Alice & Bob on LinkedInX or YouTube, visit their website www.alice-bob.com, or join The Cat Tree on Slack to learn more.

About Quandela

Quandela, entreprise leader dans le domaine du calcul quantique, propose des solutions de niveau industriel. Quandela conçoit, construit et fournit des systèmes quantiques prêts à l’emploi pour les datacenters, des processeurs quantiques accessibles via le cloud, et des services d’accès aux algorithmes.
Fondée en 2017 par la professeure Pascale Senellart, directrice de recherche au Centre de nanosciences et nanotechnologies (C2N) du CNRS, Niccolo Somaschi et Valérian Giesz, experts de renommée internationale en physique quantique, Quandela emploie plus de 100 collaborateurs de 20 nationalités différentes, en majorité des chercheurs et des ingénieurs en optique, algorithmes et sciences de l’information.
Quandela s’engage à rendre l’informatique quantique accessible à tous pour relever les défis industriels et sociétaux les plus complexes.
Pour en savoir plus : www.quandela.com

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Quandela, a leader in quantum computing, specializes in industry-grade quantum computing solutions. Quandela designs, builds, and supplies datacenter-ready quantum computing systems, cloud-accessible quantum processors, and algorithm with industrial value.
Founded in 2017 by Professor Pascale Senellart, Research Director at the Centre for Nanosciences and Nanotechnologies (C2N) at CNRS, Niccolo Somaschi and Valerian Giesz, internationally renowned experts in quantum physics, Quandela currently has over 100 employees from 20 different nationalities, mostly researchers and engineers in optical, algorithm and data science.
Quandela is committed to making advanced quantum computing accessible and beneficial for all, empowering innovators to solve the most complex industrial and societal challenges.

About CNRS
 A major player in basic research worldwide, the National Centre for Scientific Research (CNRS) is the only French organisation active in all scientific fields. Its unique position as a multi-specialist enables it to bring together all of the scientific disciplines in order to shed light on and understand the challenges of today’s world, in connection with public and socio-economic stakeholders. Together, the different sciences contribute to sustainable progress that benefits society as a whole. (www.cnrs.fr)


[1] https://www.edf.fr/groupe-edf/agir-en-entreprise-responsable/responsabilite-societale-dentreprise/transition-juste

[2] https://www.edf.fr/groupe-edf/agir-en-entreprise-responsable/numerique-oui-mais-responsable

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Quandela and OVHcloud join forces to democratize quantum machine learning with MerLin

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At the international Adopt AI event in Paris, Quandela and OVHcloud announce a strategic initiative to bring closer AI and quantum computing thanks to MerLin, Quandela’s quantum machine learning environment. This collaboration will enable researchers and companies to prototype and simulate hybrid models on NVIDIA GPUs before testing them on Quandela’s photonic quantum computers, directly accessible from OVHcloud’s cloud platform.

Paris, Roubaix (France), November 25, 2025 – Quandela, European leader in photonic quantum computing, and OVHcloud, a major European cloud provider, announce that MerLin – the first programming language and environment dedicated to quantum machine learning – will be made available on OVHcloud’s platform starting mid-2026. This unified approach will accelerate the development of hybrid applications within a sovereign cloud environment.

A bridge between AI and quantum

Unveiled in summer 2025, MerLin lays the groundwork for a new generation of Quantum Machine Learning (QML) tools, integrated into standard AI frameworks such as PyTorch and scikit-learn.
Now, thanks to its integration into the OVHcloud platform, users will be able to design, simulate, and test their hybrid AI-Quantum neural networks in a unified cloud environment powered by NVIDIA GPUs, a shared partner of both companies.

This approach will accelerate the development of industrial quantum applications: users will first be able to run their simulations on GPUs, then test and validate their models on Quandela’s photonic quantum computers, hosted and operated within OVHcloud.

A clear quantum roadmap

As part of this partnership, OVHcloud has published its quantum roadmap, announcing that Quandela’s quantum computers will become available on its cloud platform in mid-2026. The first systems to be offered will be BELENOS, a 12-qubit photonic processor, and CANOPUS, a 24-qubit photonic processor.

This deployment will be a major milestone in integrating quantum computing into the cloud, paving the way for democratized and sovereign access to European quantum power.

This partnership with OVHcloud perfectly embodies our vision: to make quantum accessible and useful for AI experts. With MerLin, we provide a seamless environment – from GPU to quantum processor – allowing the exploration of new hybrid algorithms and accelerating the journey from concept to real-world application,” says Jean Senellart, Chief Product Officer at Quandela.

With MerLin, data scientists finally have an accessible framework that does not require quantum computing skills – an actual tool that democratizes its use for the most innovative function in companies: data science,” says Fanny Bouton, Quantum Lead and Product Manager at OVHcloud.

Toward a sovereign European quantum cloud

By combining their expertise – photonics and hybrid algorithms for Quandela, cloud and sovereign infrastructure for OVHcloud, GPU acceleration for NVIDIA – the two partners are laying the foundations of a competitive and open European quantum ecosystem. An ecosystem expected to foster the emergence of hybrid applications in fields such as cybersecurity, finance, energy, healthcare, and logistics.

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Quandela Accelerates Quantum Spin-Photon Simulationby 20,000x with NVIDIA CUDA-Q

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Quandela and NVIDIA have achieved a transformative 20,000x acceleration in quantum photonics simulation using NVIDIA CUDA-Q the GPU-accelerated platform for hybrid quantum-classical computing. This breakthrough dramatically reduces development cycles for quantum optical hardware from months to hours, advancing Quandela’s Spin–Photonic Quantum Computing (SPOQC) architecture for fault-tolerant quantum computing while also creating new opportunities for hybrid quantum–classical computing approaches that combine the strengths of both paradigms.

The advance builds on Quandela’s Zero-Photon Generator (ZPG)method, which reformulates complex photon-mediated dynamics into parallelizable master equations, CUDA-Q’s master equation solver enhanced in v0.12 with support for custom superoperators andbatched Liouvillian evolution, make it possible to run hundreds of open-system simulations simultaneously on a single NVIDIA Hopper GPU, reaching an acceleration of four orders of magnitude compared to existing simulation tools. Together, these advances turn previously intractable light–matter simulations into a real-time engineering tool.

Dr. Jean Senellart, Chief Product Officer of Quandela, said: “This collaboration with NVIDIA represents a paradigm shift in how we approach quantum hardware development. What once took weeks of computation can now be done in minutes, enabling us to explore thousands of design variations and accelerate our roadmap to fault-tolerant photonic quantum processors.

The collaboration demonstrates how GPU acceleration is now redefining quantum research. CUDA-Q v0.12.0 introduces the new superoperator and batching features developed through this joint effort, now publicly available for researchers and developers.

Sam Stanwyck, Group Product Manager for quantum computing at NVIDIA, commented: “Development of larger and more performant quantum hardware requires increasingly more complex simulations. Quandela’s work with CUDA-Q shows how GPU-accelerated simulations are compressing months of quantum hardware development into hours, and accelerating the development of useful accelerated quantum supercomputers.

This milestone sets a new benchmark for simulating distributed spin–photon quantum gates, supporting Quandela’s broader mission to build fault-tolerant photonic quantum processors. Detailed benchmarks and implementation resources are available in the Quandela technical blog.

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Conclusions from the Franco-German Dialogue of Quantum Technology Players 2025

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Quantum Technologies hold great economic potential. That is why it is in Europe’s interest to secure a leading position in their development and industrial application.

The French German Dialogue of Quantum Technology Players on September 23, 2025 in Paris and Massy (France), was organized by the Quantum Technology and Application Consortium (QUTAC), Le lab Quantique, Quandela, CEA, Fraunhofer, with support from the French embassy in Germany and the German embassy in France. The dialogue brought together more than 60 experts, managers and decision-makers from innovation, corporates, research and public authorities from France and Germany.

Following the dialogue, participants identified the following key challenges for building Europe’s quantum future:

  1. Use Cases: A concrete, industry-driven pipeline of end-to-end use cases should be developed, aligned with realistic expectations and a clear definition of what constitutes a “quantum advantage”.
  2. Success Stories: Successful examples that translate scientific achievements into businesses cases with tangible return on investment and operational impact should act as references across sectors.
  3. Benchmarking and management of expectations: A focus should be given to benchmarking our progress toward error-corrected and fault-tolerant systems. These will determine the long-term viability and sovereignty of European quantum technologies.
  4. European champions: Champions at the European level should be nurtured to build scale and reduce fragmentation, all while connecting national strengths, particularly in strategic domains.
  5. Trust / Intellectual Property: Intellectual property rules in both countries should be clarified and harmonized, while patents should continue to be incentivized.
  6. European strategies: Joint roadmaps and funding strategies should be developed across countries to avoid duplicating efforts and promote shared projects with long-term impact.
  7. Funding: Investment funds and private capital should be mobilised to stimulate industrial co-development and adoption of quantum solutions. Public funding programs should expand, and public authorities and funding agencies should streamline cross-border funding through a single-entry point.
  8. Talents: Talent training should be prioritised, for example by developing shared talent platforms and joint doctoral schools and study schemes.
  9. Gathering of ecosystems among France and Germany: Creative formats of collaboration across countries should be developed, such as cross invitations at meetings, events, technology fairs, dedicated learning expeditions, and others.
  10. Dialogue governance: The Franco-German dialogue of quantum technology players should be followed up and expanded. Governance mechanisms should be supported jointly by France and Germany to ensure continuity, coordination, accountability, alignment with national strategies and dissemination of results and increased impact.

To master these challenges, participants have formulated concrete actions. You can find these in the complete version of our conclusion document, which you can download here