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.

Quantum computing has become one of the most hyped frontiers in technology, yet the companies most loudly promising breakthroughs are not always the ones best positioned to deliver. International ...

In the world of quantum computing, some of the world’s most important tech giants are striving to achieve a permanent advantage over classical computing, solving problems that simply cannot be solved ...

IBM Corp. today revealed its expected roadmap for building the world’s first large-scale, fault-tolerant quantum computer, which would enable scaling up quantum computing for real-world practical ...