IBM has managed to dramatically cut back the variety of quantum bits, or qubits, required to forestall errors in a quantum pc. Its newest method to quantum error correction ought to carry down the variety of qubits wanted to construct a helpful quantum machine.

The most important drawback with immediately’s quantum computer systems is that they’re noisy, which means they’ve error charges round 1 in 1000, whereas classical error charges are typically round 1 in 1 billion billion. …