Alice & Bob: Strategic-Technological Analysis

Alice & Bob is a French quantum computing spin-off founded in 2020 by researchers from École Normale Supérieure de Paris and CNRS, with headquarters in France (Paris) and a branch in Boston, USA . The company develops “cat qubit” based fault-tolerant quantum processors and related software.

It has rapidly raised significant funding (Series B €100M) to build large-scale quantum hardware . Its new Paris laboratory (4,000 m²) will house nanofabrication and cryogenic infrastructure (Bluefors dilution fridges, Quantum Machines controllers) to prototype its next-generation “Graphene” quantum chips (target 100 logical qubits by 2030) .

This analysis answers: How does Alice & Bob's 'cat qubit' approach enable fault-tolerant quantum processors and related software? What maturity is signalled by the Series B EUR 100M raise, a 4,000 m2 Paris lab with cryogenic infrastructure, and the target of 100 logical qubits by 2030? How does the ENS/CNRS spin-off's Paris headquarters and Boston branch position it in European and allied quantum programmes? What capability gaps, IP and strategic indicators define Alice & Bob's role in European quantum computing?