A new paper argues Microsoft exaggerated its quantum claims a year ago
Microsoft's quantum 'breakthrough' just got peer-reviewed into question. Here's what the data actually shows.
Why it matters
A Nature-published critique challenges Microsoft's claims about its Majorana topological qubits, raising questions about the validity of the company's quantum computing roadmap and the credibility of its recent chip announcements. This matters because enterprise leaders are making billion-dollar infrastructure bets on quantum timelines.
The key facts
6 to knowNature peer-reviewed critique published June 2026
Targets Microsoft's Majorana 1 chip announced February 2025
Challenges topological qubit technology claims
Henry Legg (University of St Andrews) reanalyzed Microsoft data
Majorana 2 announced at Build (June 2026)
Critique questions whether breakthrough claims were justified
Go to the source
The Verge Techtheverge.com
Publisher excerpt: Microsoft’s Majorana 1 processor. | Image: Microsoft A critique published in Nature Wednesday calls the basic technology behind Microsoft's "breakthrough" quantum computing chip the Majorana 1 into question. Microsoft unveiled the chip in February 2025 and said it featured a brand-new technology…