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This breakthrough demonstrates a practical instance of quantum advantage using 70 logical qubits, overcoming the traditional verification bottleneck inherent in random circuit sampling benchmarks. By employing a new error correction strategy, the team achieved reliable results for a classically intractable problem within a feasible timeframe, marking a significant step toward scalable fault-tolerant quantum computing.

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IBM quantum computer solves classically intractable problem in 15 minutes

ScienceDailyAugust 30, 20264 min read

IBM and University of Chicago researchers have completed a quantum computation that leading classical methods could not practically reproduce. The system used 70 error-corrected logical qubits and finished the task in roughly 15 minutes while also providing statistical evidence that the result was reliable.

Scientists used a new error correction strategy to encode 70 logical qubits and tackle a problem considered classically intractable. The quantum computation was completed in about 15 minutes, while leading classical computing methods would require an impractical amount of time to perform the same task. IBM and researchers at the University of Chicago have announced a quantum computing demonstration that meets key criteria for quantum advantage. The experiment performed…

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