After 30 months of fast-paced innovation in quantum algorithms, six research groups are hoping to hit paydirt. But there can be only one big winner—if there is a winner at all.

A small mathematical revision to quantum mechanics could effectively limit the purported infinite capacities of quantum computers—if validated, that is.

Quantum computers could solve certain problems that would take traditional classical computers an impractically long time to solve. At the Japan Advanced Institute of Science and Technology (JAIST), ...

This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. A $5 million prize awaits proof that quantum computers can ...

Quantum computers work by applying quantum operations, such as quantum gates, to delicate quantum states. Ideally, quantum computers can solve complex equations at staggeringly fast speeds that vastly ...

When the commercial, scalable, fault-tolerant quantum computing era really begins, when it becomes widely available, it will ...

Researchers developed compilation-based quantum process tomography, a framework that reconstructs quantum operations using fewer measurements than conventional methods.

The errors that quantum computers make are holding the technology back. But recent progress in quantum error correction has ...

Quantum computing is no longer a technology of the future. Its ecosystem is being built now, and states that make meaningful investments early in quantum’s mainstream development will reap the rewards ...

Xanadu Quantum Technologies Inc. (“Xanadu”), a leading photonic quantum computing company, today announced a major step forward in bringing quantum computing closer to real-world aerospace and ...

A hundred years ago, quantum mechanics was a radical theory that baffled even the brightest minds. Today, it's the backbone of technologies that shape our lives, from lasers and microchips to quantum ...