Qubits differ from classical bits, which are coded as only 0 or 1. A qubit can be a combination of both 0 and 1 simultaneously. One way to think of it is as a coin spinning between a 0 and a 1 axis.

Physicists finally identified why some quantum materials seemingly lose their electrical conductivity for no reason.

Can two versions of reality exist at the same time? Physicists say they can — at the quantum level, that is. Fact check: 18 ...