A computer chip that calculates with light instead of electrical current has passed a milestone that researchers have chased for decades: it can run real neural-network tasks, on a sliver of silicon, ...

William Andregg ushers me into the cluttered workshop of his startup Fathom Computing and gently lifts the lid from a bulky black box. Inside, green light glows faintly from a collection of lenses, ...

Chinese scientists claim to have created the world’s first light-based quantum computer which can solve problems faster than a classical supercomputer. Experts hailed the advance as a “major ...