Quantum Brain

Alice & Bob

Cat qubits with built-in error protection. Targeting fault tolerance with fewer physical qubits.

SuperconductingPrototypeFranceEst. 2020~100 employees

$30M

Last round (series-b)

Website

Recent News

Bringing Quantum Into AI Supercomputing Needs More Than Great Qubits. - Alice & Bob

google-newsOct 7, 2026product
3/10

Théau Peronnin, The Complete Story Of The Cat-Qubit Bet - Quantum Zeitgeist

google-newsOct 5, 2026scientific
3/10

Alice & Bob Demonstrates New Approach to Stabilizing Cat Qubits with DC Voltage Bias - hpcwire.com

google-newsOct 1, 2026scientific
4/10

Alice & Bob Stabilizes Cat Qubits With A Tiny Voltage Boost - quantumzeitgeist.com

google-newsOct 1, 2026scientific
7/10

Alice & Bob Demonstrates New Approach to Stabilizing Cat With DC Voltage Bias - The Quantum Insider

google-newsOct 1, 2026scientific
6/10

Alice & Bob Demonstrates New Approach to Stabilizing Cat With DC Voltage Bias

rssOct 1, 2026scientific
6/10

Alice & Bob and ENS Lyon Demonstrate DC-Biased SQUID Architecture for Multi-Photon Cat Qubit Dissipation

rssOct 1, 2026scientific
6/10

Alice & Bob Stabilizes Cat Qubits With A Tiny Voltage Boost - Quantum Zeitgeist

google-newsSep 30, 2026scientific
6/10

French National Quantum Update: September 2026 - The Quantum Insider

google-newsSep 30, 2026policy
6/10

French National Quantum Update: September 2026

rssSep 30, 2026policy
6/10

Alice & Bob Share How Expensive QEC Can Be Compared To Classical Compute - Quantum Zeitgeist

google-newsJul 12, 2026scientific
6/10

Bull and Alice & Bob expand quantum computing partnership - Engineering.com

google-newsJun 30, 2026partnership
6/10

Alice & Bob Proposes Decoupled AI Topologies to Resolve Microsecond Control Loop Latencies for Superconducting Cat Qubits - Quantum Computing Report

google-newsJun 27, 2026scientific
7/10

Alice & Bob Proposes Decoupled AI Topologies to Resolve Microsecond Control Loop Latencies for Superconducting Cat Qubits

rssJun 27, 2026scientific
7/10

Bull And Alice & Bob Deepen Quantum HPC Collaboration In Europe - Quantum Zeitgeist

google-newsJun 25, 2026partnership
7/10

Related Research

Funding History

RoundAmount
Other$108M
Strategic Investment—
Series B—
Series B$105M
Series B$100M
Series A$27M
Seed$3M

Superconducting Competitors

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