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Here we report experiments on a noisy 127-qubit processor and demonstrate the measurement of accurate expectation values for circuit volumes at a scale beyond brute-force classical computation. The widely accepted solution to this challenge is the implementation of fault-tolerant quantum circuits, which is out of reach for current processors. However, the greatest impediment to realizing its full potential is noise that is inherent to these systems. “Quantum computing promises to offer substantial speed-ups over its classical counterpart for certain problems. A technical paper titled “Evidence for the utility of quantum computing before fault tolerance” was published by researchers at IBM Quantum, University of California Berkeley, RIKEN, and Lawrence Berkeley National Laboratory.
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