Benchmarking Characterization Methods for Noisy Quantum Circuits

Understand

Effective methods for characterizing the noise in quantum computing devices are essential for programming and debugging circuit performance.

• Existing approaches vary in the information obtained as well as the amount of quantum and classical resources required, with more information generally requiring more resources.
• Here we benchmark the characterization methods of gate set tomography, Pauli channel noise reconstruction, and empirical direct characterization for developing models that describe noisy quantum circuit performance on a 27-qubit superconducting transmon device.
• We evaluate these models by comparing the accuracy of noisy circuit simulations with the corresponding experimental observations.