---
title: Trotter (v0.46)
description: API reference for qiskit.opflow.evolutions.Trotter in qiskit v0.46
source: https://eu-de.quantum.cloud.ibm.com/docs/en/api/qiskit/0.46/qiskit.opflow.evolutions.Trotter
---

# Trotter

*class* `qiskit.opflow.evolutions.Trotter(reps=1)`

[GitHub](https://github.com/qiskit/qiskit/tree/stable/0.46/qiskit/opflow/evolutions/trotterizations/trotter.py)

Bases: [`Suzuki`](/docs/api/qiskit/0.46/qiskit.opflow.evolutions.Suzuki "qiskit.opflow.evolutions.trotterizations.suzuki.Suzuki")

Deprecated: Simple Trotter expansion, composing the evolution circuits of each Operator in the sum together `reps` times and dividing the evolution time of each by `reps`.

> **Deprecated since version 0.24.0**
>
> The class `qiskit.opflow.evolutions.trotterizations.trotter.Trotter` is deprecated as of qiskit-terra 0.24.0. It will be removed in the Qiskit 1.0 release. For code migration guidelines, visit [https://qisk.it/opflow\_migration](https://qisk.it/opflow_migration).

**Parameters**

**reps** ([*int*](https://docs.python.org/3/library/functions.html#int)) – The number of times to repeat the Trotterization circuit.

## Attributes

### order

returns order

### reps

The number of repetitions to use in the Trotterization, improving the approximation accuracy.