原文：Researcher Throws Cold Water on Microsoft Quantum Claims
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简而言之，物理学家 Henry Legg 认为微软尚未展示拓扑量子位。
批评针对的是微软最近发布的 Majorana 2 芯片的技术。
Microsoft rejected the claims and defended its results in a formal response.
Weeks after Microsoft unveiled Majorana 2, a quantum chip it said was 1,000 times more reliable than its predecessor and a major step toward practical quantum computing by 2029, a leading researcher is challenging the company's claims.
In a commentary published Wednesday in Nature, University of St Andrews physicist Henry Legg argued Microsoft has failed to demonstrate the existence of a topological qubit, a theoretical type of quantum bit that could be more resistant to errors than conventional quantum computing approaches.
“My critique exposing flawed tune-up procedures, code errors, and omitted data behind Microsoft's 'breakthrough’ quantum computing claims is published today in Nature,” Legg wrote on BlueSky. “简而言之：微软甚至还没有证明单个拓扑量子位所需的基本物理原理。”
Legg's commentary responds to a 2025 paper published in Nature by Microsoft Quantum researchers describing evidence for the company's topological qubit.根据 Legg 的说法，微软认为该设备发出的信号可能是实验噪音。
“The detection of a topographical superconducting phase–the basis of proposed topological qubits–is notoriously difficult because trivial states can mimic the signatures expected from a topological superconductor,” Legg wrote.
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Microsoft said Majorana 2 can keep quantum information stable for an average of 20 seconds, with some qubits lasting up to a minute.该公司表示，人工智能通过识别有前途的伴侣来帮助加速开发