The Alice & Bob story began in 2020 with Théau Peronnin and Raphaël Lescanne, physicists working on their doctoral thesis in quantum physics at ENS Lyon and ENS Paris respectively. Their goal: to explore the potential of quantum computing.

Right from the start, they were recognized for their thesis work on qubits protected from certain quantum errors, known as "cat qubits", published in Nature Physics. This marked the start of the Alice & Bob adventure, with Théau as CEO and Raphaël as CTO.

Alice & Bob has already raised €30 million in venture capital and has over 80 employees in Paris and Boston. A third of their staff hold PhDs, which has enabled key advances since the company was founded. Today, Alice & Bob is a major player in fault tolerant quantum computing research and development, and is working with industry players to explore use cases.

Cat Qubit: The "Chat qubit" represents a major breakthrough in superconducting quantum computing architecture. Unlike traditional qubits, their Chat qubits are intrinsically protected against bit flip errors, significantly reducing the number of qubits needed to perform certain key algorithms.

DeepTech Motion: To innovate in this field, they seek to accelerate the transition from basic research to practical applications. To achieve this, they have developed a management process called DeepTech Motion, based on a four-phase cycle: conceptualization, simulation, manufacturing and experimentation. This methodology enables them to move rapidly from idea to results.

The Box: They propose this innovative offer to evaluate quantum use cases and advise companies. Unlike traditional consultants who may lack quantum expertise, but also unlike quantum manufacturers' sales teams who are naturally biased towards their own solutions, they offer an unbiased analysis of development possibilities.

Over the next decade, quantum computing will play a growing role in industry, offering innovative solutions, including in the context of the ecological transition. Quantum devices will not be ubiquitous like classical computers, but more specialized in problems of high complexity.

Quantum Molecular Simulations: Quantum computers would accelerate materials science research and enable the development of products such as sustainable materials and fuels.

Process optimization: In the energy sector, for example, quantum computing could improve the energy grid, making it more resilient and capable of managing large-scale renewable energy sources.

Advanced modeling: Quantum computers could also revolutionize modeling, enabling high-resolution simulations of the Earth's climate systems, for example.

In conclusion, quantum computing has the potential to accelerate scientific discovery and pave the way for a more abundant and prosperous future.

At least, that's why they embarked on this adventure.

In 2020, their academic work on the design of quantum error-protected qubits was published in Nature Physics. Shortly afterwards, building on this revolutionary breakthrough, they founded Alice & Bob, with Théau as CEO and Raphaël as CTO. Their goal is to combat decoherence to make quantum computing error-tolerant and accessible to humanity.

From left to right: Théau Peronnin, Raphaël Lescanne.

Théau PERONNIN

is a physicist by vocation and training. He holds a Master's degree from École Polytechnique and a PhD in quantum physics from ENS Lyon.

Raphaël LESCANNE

is a quantum physicist with a doctorate from the École Normale Supérieure in Paris, and an expert in superconducting circuits, quantum error correction and dissipation engineering.

Alice & Bob is a French start-up based in Paris and Boston. Its goal is to create the first universal fault tolerant quantum computer. Launched in 2020, Alice & Bob has already raised €30 million in venture capital, hired over 80 employees and achieved significant experimental results. Winner of the French Tech DeepNum 20 and French Tech 2030 programs, Alice & Bob specializes in "Cat Qubits", a technology that reduces hardware requirements for the Shor algorithm by up to 60 times compared with competing approaches, demonstrating the power of its architecture.