---
title: zne (latest version)
description: API reference for qiskit_mitigation.zne in the latest version of qiskit-mitigation
source: https://quantum.cloud.ibm.com/docs/en/api/qiskit-mitigation/zne
---

# ZNE

`qiskit_mitigation.zne`

Mitigation methods based on Zero Noise Extrapolation technique.

|                                                                                                                                     |                                                                                                                        |
| ----------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------- |
| [`GateFolding`](/docs/api/qiskit-mitigation/zne-gate-folding#qiskit_mitigation.zne.GateFolding "qiskit_mitigation.zne.GateFolding") | Calculates expectation values of observables using Zero Noise Extrapolation (ZNE) with gate folding mitigation method. |
| [`PEA`](/docs/api/qiskit-mitigation/zne-pea#qiskit_mitigation.zne.PEA "qiskit_mitigation.zne.PEA")                                  | Calculates expectation values of observables using Probabilistic Error Amplification (PEA) mitigation method.          |

### SUPPORTED\_FOLDED\_GATES

Type: [`tuple`](https://docs.python.org/3/builtins/stdtypes.html#tuple)\[[`type`](https://docs.python.org/3/builtins/functions.html#type), ...]

Default value: `(<class 'qiskit.circuit.library.standard_gates.ecr.ECRGate'>, <class 'qiskit.circuit.library.standard_gates.x.CXGate'>, <class 'qiskit.circuit.library.standard_gates.y.CYGate'>, <class 'qiskit.circuit.library.standard_gates.z.CZGate'>, <class 'qiskit.circuit.library.standard_gates.swap.SwapGate'>)`

2-qubit gate types supported for folding.