Zero-Noise Extrapolation

Zero-noise extrapolation (ZNE) is an error mitigation technique in which an expectation value is computed at different noise levels and, as a second step, the ideal expectation value is inferred by extrapolating the measured results to the zero-noise limit (see the section What is the theory behind ZNE?).

The diagram shows the workflow of the zero noise extrapolation (ZNE) in Mitiq.

You can get started with ZNE in Mitiq with the following sections of the user guide:

• How do I use ZNE?
• When should I use ZNE?
• What additional options are available when using ZNE?
• What happens when I use ZNE?
• What is the theory behind ZNE?

Here are some examples on how to use ZNE in Mitiq:

• Zero-noise extrapolation with Qiskit on IBMQ backends

• Zero-noise extrapolation with Pennylane on IBMQ backends

• Zero-noise extrapolation with Braket on the IonQ backend

• Zero-noise extrapolation of the energy landscape of a variational circuit with Cirq on a simulator

You can find many more in the Examples section of the documentation.