On May 7, 1981, influential physicist Richard Feynman gave a keynote speech at Caltech. Feynman opened his talk by politely rejecting the very notion of a keynote speech, instead saying that he had ...

Researchers find a way to purify photons, clearing major hurdles for faster quantum computers and ultra-secure networks.

Rapid advances in the kind of problems that quantum computers can tackle suggest that they are closer than ever to becoming ...

While quantum computers are already being used for research in chemistry, material science, and data security, most are still too small to be useful for large-scale applications. A study led by ...

AI is the technology trend of the moment—but what’s 10 years down the road? Some experts say quantum computing will be the next game changer. WSJ visited IBM’s quantum computing lab to learn why. With ...

Physicists are learning to treat light not as an untouchable beam that simply passes through matter, but as something that ...

Governments and technology companies are fueling an urgent, high-stakes race to develop quantum power, which promises to revolutionize- and potentially compromise - global security Quantum computing ...

A new discovery shows that messy, stray light can be used to clean up quantum systems instead of disrupting them. University ...

Imagine a scenario where banks can forecast market shifts in a matter of milliseconds, identify risk to a specific location and instantly rebalance portfolios—tasks that consume enormities of ...