---
title: SupportsMajoranaOperator (latest version)
description: API reference for qiskit_fermions.protocols.SupportsMajoranaOperator in the latest version of qiskit-fermions
source: https://eu-de.quantum.cloud.ibm.com/docs/en/api/qiskit-fermions/protocols-supports-majorana-operator
---

# SupportsMajoranaOperator

*class* `SupportsMajoranaOperator(*args, **kwargs)`

Bases: [`Protocol`](https://docs.python.org/3/library/typing.html#typing.Protocol)

An equivalent of the [`SupportsFermionOperator`](/docs/api/qiskit-fermions/protocols-supports-fermion-operator "qiskit_fermions.protocols.SupportsFermionOperator") protocol, targeting Majorana operators.

See [`majorana_operator()`](/docs/api/qiskit-fermions/mappers-library-majorana-operator "qiskit_fermions.mappers.library.majorana_operator") for the type-agnostic helper function dispatching to the method below.

```pycon
>>> from qiskit_fermions.operators import FermionOperator
>>> fer_op = FermionOperator.from_dict({((True, 0), (False, 0)): 1})
>>> maj_op = fer_op._majorana_operator_()
>>> print(format(maj_op.normal_ordered().simplify()))
 5.000000e-1 +0.000000e0j * ()
  0.000000e0-5.000000e-1j * (γ'0 γ0)
```

**Protocol Methods**

### \_majorana\_operator\_

`_majorana_operator_()`

Converts this operator into a [`MajoranaOperator`](/docs/api/qiskit-fermions/operators-majorana-operator "qiskit_fermions.operators.MajoranaOperator") instance.

**Return type**

[MajoranaOperator](/docs/api/qiskit-fermions/operators-majorana-operator "qiskit_fermions.operators.MajoranaOperator")