Nature Paper Challenges Microsoft's 1,000x-More-Reliable Majorana Chip Claims
Updated
Updated · bbc.co.uk · Jun 24
Nature Paper Challenges Microsoft's 1,000x-More-Reliable Majorana Chip Claims
3 articles · Updated · bbc.co.uk · Jun 24
Summary
Dr Henry Legg said in a Nature paper that Microsoft's claimed quantum breakthroughs rest on flawed evidence, arguing a software tool used to check the research had coding errors and insufficient accuracy.
Legg also said Microsoft still has not proved it created the Majorana quasiparticle central to its approach, and accused the company of withholding enough data for broader scientific scrutiny.
Microsoft rejected the critique, saying the disputed software did not interpret the measurements behind its conclusions and that Nature published its rebuttal; it added that full data is being shared with Darpa for independent review.
The dispute lands after Microsoft released a second-generation Majorana chip it says is 1,000 times more reliable, reviving scrutiny of a program already hit by a 2021 retraction and a 2025 Nature editor's note.