There’s widespread agreement that most useful quantum computing will have to wait for the development of error-corrected qubits. Error correction involves ...

Everyone in quantum computing agrees that error correction will be the key to doing a broad range of useful calculations. But early every company in the field seems ...

Written for you by our author Tejasri Gururaj, edited by Gaby Clark, and fact-checked and reviewed by Robert Egan —this article is the result of careful human work. We rely on readers like you to keep ...

This technique involves diagnosing and correcting errors while calculations are underway without destroying logical qubits. Because qubits process calculations while they're in a state of quantum ...

Quantum logic: Dolev Bluvstein (left) and Mikhail Lukin with their quantum processor. (Courtesy: Jon Chase/Harvard University) A quantum processor with 48 logical qubits that can execute algorithms ...