[R]eluctance to accept that practical quantum computing has arrived presumably stems from the question of whether it can do anything truly useful yet. Sure, one can construct a problem that...

Although the word “qudit” might look like a typo, this lesser-known cousin of the qubit, or quantum bit, can carry more information and is more resistant to noise — both...

Zapata and the University of Hull developed new techniques to extrapolate meaningful data from noisy quantum devices and used it to calculate the ro-vibrational spectrum of hydrogen to obtain results...

The team, from Japan, succeeded in executing the world's fastest two-qubit gate using a completely new method of manipulation....

If quantum computers can be made to operate more efficiently, while also eliminating the noise they generate with their answers, it could boost the already fast-moving quantum development timeline....

To start to do anything useful with quantum computers, we need to reach the million-qubit scale. It’s a monumental task but not an impossible one with the right engineering...