Quantum computing has long promised breakthroughs in fields ranging from drug discovery and materials science to cryptography and complex industrial optimisation. Yet despite rapid advances across the industry, one major challenge continues to limit practical deployment: error correction. Quantum systems remain highly sensitive to noise and instability, making fault tolerant computing one of the sector’s most important technological goals. French quantum computing company Alice & Bob is developing a specialised architecture designed to address that problem, and the company has now secured strategic backing from NVIDIA through its venture capital arm, NVentures.
The investment expands Alice & Bob’s €100 million Series B funding round and strengthens the growing collaboration between the two companies around hybrid quantum and classical computing infrastructure.
Financial terms of the investment were not disclosed.
Building Fault Tolerant Quantum Systems
Founded in Paris, Alice & Bob focuses on developing fault tolerant quantum computing systems using a technology known as cat qubits.
Cat qubits are designed to reduce certain types of quantum errors directly at the hardware level, potentially lowering the complexity and scale of error correction systems required to build practical quantum computers.
The company believes this architecture could significantly accelerate the path toward commercially useful quantum systems capable of solving real world scientific and industrial problems.
According to Theau Peronnin, the future of quantum computing will rely heavily on hybrid infrastructure combining quantum processors with classical accelerated computing systems.
Deepening Collaboration With NVIDIA
Alice & Bob and NVIDIA have been working closely together since 2024 across both hardware and software integration projects.
The collaboration includes work involving CUDA Q, cuQuantum, and Dynamiqs, Alice & Bob’s open source quantum simulation library.
The two companies are also collaborating on NVQLink, NVIDIA’s open architecture platform designed to connect quantum systems with classical accelerated computing infrastructure.
According to Peronnin, Alice & Bob has been integrating its cat qubit architecture into NVIDIA’s broader accelerated computing ecosystem to support development of future fault tolerant quantum computers.
The company says this work is intended to help create scalable hybrid computing systems capable of combining the strengths of both quantum and GPU based classical computation.
Hybrid Computing as the Industry’s Next Phase
The broader quantum computing industry is increasingly shifting toward hybrid models where quantum processors operate alongside traditional high performance computing systems rather than replacing them entirely.
This approach allows classical computing infrastructure to manage orchestration, simulation, optimisation, and error correction tasks while quantum hardware focuses on specialised computational problems.
Timothy Costa said NVIDIA has focused on building infrastructure capable of connecting quantum processors with advanced accelerated computing systems.
Costa added that Alice & Bob shares NVIDIA’s long term vision around accelerated quantum supercomputing and has worked closely with NVIDIA to integrate its qubits into the company’s quantum computing platform.
Bringing Quantum Computing Into HPC Centres
Alice & Bob says the collaboration with NVIDIA will continue as both companies work toward integrating quantum systems into high performance computing centres globally.
The company plans to further connect its cat qubit architecture with NVIDIA’s accelerated computing hardware and software stack as integration projects continue between the organisations.
The goal is to help future quantum systems operate within broader computational environments already used by scientific research institutions, industrial organisations, and enterprise infrastructure providers.
Growing Momentum in Quantum Infrastructure
The investment reflects increasing strategic interest from major technology companies in the future quantum computing ecosystem.
As the industry moves closer to fault tolerant architectures, collaboration between quantum hardware companies and established computing infrastructure providers is becoming increasingly important.
Rather than developing isolated quantum systems, companies are now focusing on creating integrated computing environments where quantum processors, GPUs, software frameworks, and simulation tools work together within scalable hybrid architectures.
For Alice & Bob, the partnership with NVIDIA represents another step toward commercialising fault tolerant quantum computing systems capable of operating inside real world computing infrastructure at scale.
