Quantum Computing

An update to the classic “double-slit” experiment paves the way toward a novel strategy for quantum computing

The science is immature, and a multipurpose quantum computer doesn’t yet exist. But that isn’t stopping investors from pouring cash into quantum start-ups

The limited system made a notable advancement on the road to beating classical machines

Staking its claim for “quantum supremacy,” the company pulls back the curtain on its landmark Sycamore chip

The company says that its quantum computer is the first to perform a calculation that would be practically impossible for a classical machine

As quantum computing creeps closer, IBM successfully demonstrates a way to secure sensitive information

With decades still to go until the first general-purpose quantum computers, the race is on to make today’s systems useful

Breakthrough demonstrations using defective diamonds, high-flying drones, laser-bathed crystals and other exotica suggest practical, unhackable quantum networks are within reach

U.S. government funding is needed to sustain the arduous journey toward a practical quantum computer, experts say

Intel’s head of quantum computing talks about the challenges of developing algorithms, software programs and other necessities for a technology that doesn’t yet exist

Two technologies may be on the verge of surpassing even the most powerful digital computers in a year or so, but key challenges remain unsolved

Results from the Micius satellite test quantum entanglement, pointing the way toward hackproof global communications