Quantum computing

It’s been difficult to find important questions that quantum computers can answer faster than classical machines, but a new algorithm appears to do it for some critical optimization tasks.

Hypothetical devices that can quickly and accurately answer questions have become a powerful tool in computational complexity theory.

Researchers got a better look at the thoughts of chatbots, amateurs learned exactly how complicated simple systems can be, and quantum computers passed an essential milestone.

In a first, researchers have shown that adding more “qubits” to a quantum computer can make it more resilient. It’s an essential step on the long road to practical applications.

Researchers are exploring new ways that quantum computers will be able to reveal the secrets of complex quantum systems.

While devising a new quantum algorithm, four researchers accidentally established a hard limit on entanglement.

Researchers have proved that secure quantum encryption is possible in a world without hard problems.

In the search for the most scalable hardware to use for quantum computers, qubits made of individual atoms are having a breakout moment.

Teleporting people through space is still science fiction. But quantum teleportation is dramatically different and entirely real. In this episode, Janna Levin interviews the theoretical physicist John Preskill about teleporting bits and the promise of quantum technology.