
Google Turns Quantum Computing's Costliest Ingredient Into a Yield Problem
Google's Willow processor produced magic states about 40 times cleaner than uncultivated ones, at 99.99% logical fidelity. Cultivation replaces sprawling distillation factories with small patches that check their own work, and The Quantum Insider reports that a four-hour software calibration raised the share of attempts kept about tenfold.

