Quantum computing firm QuEra says it plans to make a fault-tolerant quantum computer and offer it to users through the cloud ...

A Canadian quantum computing start-up claims its new qubit will enable much smaller and cheaper error-free quantum computers. But getting there will be a steep challenge. To correct its own errors, a ...

Quantum computing has long lived in the realm of lab demos and bold PowerPoint slides, but two of the industry’s biggest players now say the first truly useful machines are less than five years away.

Explore how two quantum innovators stack up on customer reach, financial health, and risk as they race for commercial leadership in a fast-evolving sector.