The company says it has solved the first problem of scientific relevance with a quantum processor faster than could be done with classical computers—but others disagree

D-Wave's claim that its quantum computers can solve problems that would take hundreds of years on classical machines have been undermined by two separate research groups showing that even an ordinary

Key Takeaways D-Wave and other quantum computing stocks soared Wednesday after the company claimed to achieve a breakthrough.D-Wave said its quantum computer outperformed one of the world's most powerful classical supercomputers.