Quantum computers still can’t do much. Almost every time researchers have found something the high-tech machines should one day excel at, a classical algorithm comes along that can do it just as well ...

A century ago, the strange behavior of atoms and elementary particles led physicists to formulate a new theory of nature. That theory, quantum mechanics, found immediate success, proving its worth ...

In superconducting materials, pairs of electrons form a shared quantum-mechanical state. Control of this macroscopic quantum state is a key feature that is required for superconducting quantum ...