European Sovereignty Monitor

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Alice & Bob and ENS Lyon demonstrate DC biased cat qubit stabilisation

French quantum firm Alice & Bob and ENS Lyon demonstrated a DC voltage biased SQUID coupler stabilising cat qubits without microwave pumps, reaching a 3 MHz two photon exchange rate. The design could simplify wiring and cut heat load in future fault tolerant machines.

Verified AI-drafted Alice & Bob press release via EIN Presswire, 30 September 2026

What it does not test. It does not establish when the architecture reaches a commercial quantum processor or how it performs at larger scale.

How this item counts. No movement: no answer to who owns, who operates, whose law governs or who made the parts changes. Weight 0. lab demo of coupler design, no production or scale-up committed yet. European Sovereignty Index

How this item was made. Drafted by an AI system (Claude (Anthropic)) from the source cited above and published under the editor’s responsibility without a person reading it first. How the record is made

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