Anonymous11 days ago
Microsoft unveiled Majorana 2, a topological quantum chip it says is 1,000 times more reliable than its predecessor, with qubit lifetimes averaging 20 seconds — up from milliseconds on the Majorana 1. The company has accelerated its roadmap to a practical quantum computer by 2029, but multiple physicists say the preprint data does not resolve longstanding questions about whether Microsoft has actually produced topological qubits, and the company's track record includes a retracted Nature paper and a pattern of disputed claims.