Google Quantum has achieved ‘demonstration of verifiable quantum advantage’

Yu Chen, Director, Quantum Processor, Google Quantum AI, and Michel Devoret, Chief Scientist, Quantum Hardware, Google Quantum AI, said in a blog post: “Today, powered by our high-performance quantum chip, Willow, we have achieved the first-ever demonstration of verifiable quantum advantage. This milestone is a critical step toward realizing useful quantum computation, a feat made possible by the precision and speed engineered into our quantum hardware systems… The current-generation Willow chip, benefiting from continuous post-release improvements, delivers best-in-class performance at scale. Across its entire 105-qubit array, it features fidelities of 99.97% for single-qubit gates, 99.88% for entangling gates, and 99.5% for readout, all operating at an unmatched speed of tens to hundreds of nanoseconds… As we march toward our next milestone – a long-lived logical qubit – we are fully aware of the numerous challenges ahead. Reaching our ultimate goal will require orders-of-magnitude improvement in system performance and scale, with millions of components to be developed and matured. Despite these hurdles, we remain committed to navigating this path forward.”