Google’s Willow is a state-of-the-art 105-qubit superconducting quantum processor introduced in December 2024, designed to achieve fault-tolerant, practical quantum computing. It demonstrated quantum supremacy by performing random circuit sampling in under 5 minutes, a task estimated to take the fastest classical supercomputer 10 septillion years. [1, 2, 3, 4, 5]

Key Features and Significance

• Performance: Willow can solve specific complex, entangled quantum problems 13,000 times faster than the previous best methods.
• Error Correction: It is a major advancement, achieving “below-threshold” error correction, meaning as the chip scales, errors are exponentially suppressed rather than compounded.
• Architecture: It uses 105 superconducting qubits, providing significantly higher computational capacity than its predecessor, Sycamore.
• Applications: The processor is aimed at practical uses such as material science, chemistry, and optimizing complex systems, with experiments already showing potential in modeling “quantum echoes”. [1, 2, 3, 4, 5, 6, 7]

Limitations
Despite its breakthroughs, Willow operates at near-absolute zero temperatures and is still in the early stages of quantum technology, focusing on specialized tasks rather than general-purpose computing. [1, 2]

Significance
Willow marks a transition from purely theoretical quantum advantage to practical, error-corrected quantum computing, positioning Google to tackle previously impossible problems in drug discovery, energy storage, and AI. [1, 2]

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https://blog.google/innovation-and-ai/technology/research/google-willow-quantum-chip/

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Categories: Articole de interes general