Google has demonstrated a verifiable quantum advantage using its new Willow quantum processor. The chip executed the "quantum echo" algorithm 13,000 times faster than the world's fastest classical supercomputer, a milestone documented in the journal Nature.
The Willow chip features 105 superconducting qubits and incorporates below-threshold quantum error correction. This architecture achieves leading performance metrics, including a single-qubit gate fidelity of 99.97% and an entangling gate fidelity of 99.88%, with all operations completed in nanoseconds.
A key breakthrough is the algorithm's verifiability, producing consistent results across different quantum systems and overcoming a major historical challenge. This capability also enabled the development of a "molecular ruler" technique with potential for improving chemical analysis.
From its 2019 quantum supremacy experiment to this latest advance, Google is methodically progressing toward its goal of building a fault-tolerant quantum computer, paving the way for future applications in medicine and materials science.
ICgoodFind : This breakthrough validates the superconducting quantum approach and opens new possibilities for high-performance computing.
