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Sergey Frolov

Sergey Frolov

Physicist and longtime critic of Majorana claims

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Frolov has said the paper may not hold up to scrutiny and could warrant retraction.

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Microsoft's topological qubit claim challenged in peer-reviewed Nature critique

New Capabilities

Calling for scrutiny of the original paper

Microsoft says it built a topological qubit, a quantum building block meant to be far more stable than today's. On June 24, 2026, the journal Nature published a peer-reviewed critique arguing the evidence does not hold up.

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