Error mitigation techniques

Quantum error mitigation is a set of techniques aimed at reducing the effects of errors in quantum computers.

Quantum devices are subject to environmental noise that degrades the quality of computations performed. While fault-tolerant quantum computing promises a solution to this problem, current quantum devices are limited by the number of qubits and relatively high error rates. To combat this in the near-term, researchers are investigating methods to improve the accuracy of noisy quantum computation. This approach, known as quantum error mitigation, involves using various techniques to extract the best signal from noisy measurement data.