The new method has the potential to accelerate quantum computations by a factor of a thousand, bringing fault-tolerant quantum computers a significant step closer. Photo: Chalmers University of Technology | Malin Arnesson and Anna-Lena Lundquist. CREDIT Chalmers University of Technology | Malin Arnesson and Anna-Lena Lundquist.

One Pulse Now Builds a Quantum Code, Not Thousands

A Chalmers and Tianjin physics team compressed years of incremental quantum-state tuning into one carefully calculated pulse, speeding up a key bottleneck in fault-tolerant quantum computing roughly 1,000 times over, at least in simulation.