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Chronicles

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Paris-based Alice&Bob, a cat qubit quantum architecture pioneer, raised a €100M Series B for a “fault tolerant” quantum computer, after a €27M Series A in 2022

Ingrid Lunden / TechCrunch :

TechCrunch Ingrid Lunden

Context & Ripple Effects

Alice&Bob’s €100M Series B follows its €27M Series A in 2022, extending a financing path centered on fault-tolerant processors and its cat-qubit approach.

The round also sits alongside substantial funding for other European hardware approaches, including PASQAL’s €100M neutral-atom Series B, underscoring that investors are backing several competing routes to useful quantum systems.

First-order effects

  • Alice&Bob gains a materially larger capital base to pursue its stated fault-tolerant quantum-computer goal, while its existing investors and new backers deepen exposure to its cat-qubit architecture.
  • The financing raises Alice&Bob’s profile among quantum-hardware teams seeking to demonstrate that their error-correction approach can progress from research toward a full system.

Second-order effects

  • Competing quantum developers face a clearer need to differentiate their hardware architectures and financing plans; PASQAL’s comparable Series B illustrates that the contest is not confined to one technical path.
  • Capital and partnership attention may increasingly favor teams that can connect hardware design to fault tolerance, rather than only reporting progress on physical qubits.

Third-order effects

  • If similarly sized rounds continue across architectures, quantum competition will be shaped less by a single qubit modality than by which teams can translate error correction into economically viable logical qubits.
  • The sector may become more capital-selective: well-funded developers can sustain the long engineering cycles required for fault tolerance, while less-funded peers may need partners or narrower positions in the quantum stack.

The trend: Quantum funding is increasingly concentrating around rival hardware architectures that claim a credible path from experimental qubits to fault-tolerant logical computing.

Discussion

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