Quantum computers hold great promise for exciting applications in the future, but for now they keep presenting physicists and engineers with a series of challenges and conundrums. One of them relates ...

“Quantum computing is not just a faster classical computer, because it works on a different principle.” What makes quantum computers different? Computers store and process information using a language ...

D-Wave is a leader in quantum annealing and is just beginning to pursue a more traditional gate-based approach to quantum computing. Rigetti's systems have shown strong advancements in speed, but its ...

Quantum computers struggle because their qubits are incredibly easy to disrupt, especially during calculations. A new experiment shows how to perform quantum operations while continuously fixing ...

The commonly used RSA encryption algorithm can now be cracked by a quantum computer with only 100,000 qubits, but the technical challenges to building such a machine remain numerous ...