News Quantum Physics

Microsoft’s quantum chip got an upgrade. Critics are still skeptical

Error woes that plague quantum computers may be solved by using the math of topology

A hand holds a square quantum computing chip with the name Majorana 2 on it.

Microsoft’s new topological quantum computing chip, the Majorana 2, (shown) could allow calculations that are resistant to errors.

Photo by John Brecher for Microsoft

By Emily Conover

Errors are a big problem for quantum computers, befuddling calculations and hindering the machines’ potential to outperform traditional computers. Microsoft’s new quantum chip could bring hope — for those who believe the company’s claims.