Evidence for the Utility of Quantum Computing Before Fault Tolerance

Explore the potential of noisy quantum processors in this 49-minute talk by Kristan Temme from IBM. Delve into the challenges of quantum computing, focusing on noise as the primary obstacle to realizing its full potential. Learn about noise-learning and error-mitigation protocols used in experiments with a 127-qubit processor, demonstrating the implementation of quantum circuits at a scale typically only accessible through classical approximation methods. Discover how these experiments provide the first evidence that useful information can be obtained from current devices in the pre-fault-tolerant era, offering insights into the utility of quantum computing before achieving full fault tolerance.