Right now, quantum computers are small and error-prone compared to where they’ll likely be in a few years. Even within those limitations, however, there have been regular claims that the hardware can ...

Quantum computing, once hailed as a new advancement, has encountered significant challenges that have tempered early optimism. Sabine Hossenfelder explores the technical and practical obstacles that ...

A quantum computer has accurately reproduced real experimental data on an unprecedented scale. Classical computers are faster and more accurate than the quantum variety. Even so, the simulation ...

Despite steady improvements in quantum computers, they're still noisy and error prone, which leads to questionable or wrong answers. Scientists predict that they won ...

Today's quantum computers often calculate the wrong answer because of noisy environments that interfere with the quantum entanglement of qubits. IBM Quantum has pioneered a technique that accounts for ...