Quantum devices that measure Earth's magnetic fields could help replace GPS—if researchers can figure out how to tell when such devices are working well, or even at all. A Pentagon contract suggests ...

International Business Machines unveiled its plan to build “the world’s first large-scale, fault-tolerant quantum computer” in June, and on Wednesday, the company shared more on how it plans to reach ...

Scientists have successfully added a quantum storage layer to a cryptography protocol, an essential step for the practical use of the encryption properties offered by quantum mechanics. Quantum ...

It's a well-known fact that quantum calculations are difficult, but one would think that quantum computers would facilitate the process. In most cases, this is true. Quantum bits, or qubits, use ...

Quantum computers can outperform even the best classical supercomputers thanks to quantum entanglement and superposition, but even they can’t solve some problems. A new preprint study shows how ...

What if the impossible became routine? Imagine solving a problem so complex it would take a classical computer 20 million years to crack, now imagine doing it in just 15 minutes. That’s exactly what ...

Quantum computing promises to disrupt entire industries because it leverages the rules of quantum physics to perform calculations in fundamentally new ways. Unlike traditional computers that process ...

BUFFALO, N.Y. — Imagine zooming into matter at the quantum scale, where tiny particles can interact in more than a trillion configurations at once. If that sounds complicated, it is: Physicists often ...

The original version of this story appeared in Quanta Magazine. Hard problems are usually not a welcome sight. But cryptographers love them. That’s because certain hard math problems underpin the ...

The Defense Advanced Research Projects Agency is looking for companies to build the hardware and software quantum computers need to communicate and work together. Most quantum computers are standalone ...