Google Says It Just Cracked One of Quantum Computing's Biggest Bottlenecks
Summary
Google says its Quantum AI team demonstrated magic state cultivation on its Willow processor, reducing errors about 40-fold and achieving 99.99% logical fidelity. The technique filters and checks noisy quantum states, keeping only successful attempts; about 8% passed, but it could avoid the large qubit factories required by conventional distillation. The experiment used at most 54 of Willow’s 105 qubits. Its results remain far from the error rates needed to break RSA-2048, and Google says scaling up and reducing hardware noise are next steps. The work could lower future quantum-computing costs, including for applications that threaten current encryption, but it does not present an immediate risk to Bitcoin or other wallets.
