Google (Nasdaq: GOOGL) has unveiled Willow, a quantum processor that slashes computing time for certain tasks from billions of lifetimes to mere minutes, marking what experts call a turning point in the field’s decades-long quest for practical quantum computing.
The 105-qubit chip tackles quantum computing’s greatest hurdle – the tendency for calculations to become increasingly unstable as systems grow larger. Willow reverses this trend, with larger arrays of qubits actually performing more reliably than smaller ones.
The technology, housed in specialized ultra-cold refrigeration units called cryostats, processes information in ways that would keep traditional supercomputers running for 10 septillion years — far longer than the universe has existed.
“This milestone changes the game,” Hartmut Neven, who heads Google Quantum AI, told Reuters. The achievement comes from a new dedicated quantum chip facility in Santa Barbara, replacing the company’s previous university-based manufacturing.
Chief architect Anthony Megrant highlighted the facility’s rapid prototyping capabilities as crucial for accelerating development. The chip achieves stability times of 100 microseconds, five times longer than its predecessors.
While rivals chase higher qubit counts, Google focused on stability, methodically testing Willow across incrementally larger qubit grids. Each size increase — from 9 to 25 to 49 qubits — showed better error resistance, defying previous limitations.
The technology remains in its research phase, with no immediate practical applications. However, Google sees it as groundwork for future systems targeting complex challenges in drug development, energy storage, and artificial intelligence.
Google’s claims follow its disputed 2019 quantum computing announcement, which competitor IBM (NYSE: IBM) challenged. The company says its new results incorporate stricter testing standards to address past criticisms.
“Our assessment of how Willow outpaces one of the world’s most powerful classical supercomputers, Frontier, was based on conservative assumptions,” Neven wrote.
“Of course, as happened after we announced the first beyond-classical computation in 2019, we expect classical computers to keep improving on this benchmark, but the rapidly growing gap shows that quantum processors are peeling away at a double exponential rate and will continue to vastly outperform classical computers as we scale up.”
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