Microsoft Quantum Computing 'Breakthrough' Faces Fresh Challenge

An anonymous reader shares a report: A physicist has cast doubt on a test that underlies a high-profile claim by Microsoft to have created the first 'topological qubits', a long-sought goal of the company's quantum computing effort. The critique comes amid mounting speculation about the validity of Microsoft's claim.
Microsoft announced the breakthrough, which could lead to a quantum computer more resistant to information loss than with other approaches, on 19 February. Without a peer-reviewed p