---
title: ControlChannel (v1.4)
description: API reference for qiskit.pulse.channels.ControlChannel in qiskit v1.4
source: https://eu-de.quantum.cloud.ibm.com/docs/en/api/qiskit/1.4/qiskit.pulse.channels.ControlChannel
---

# ControlChannel

*class* `qiskit.pulse.channels.ControlChannel(*args, **kwargs)`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.4/qiskit/pulse/channels.py#L191-L197)

Bases: `PulseChannel`

Control channels provide supplementary control over the qubit to the drive channel. These are often associated with multi-qubit gate operations. They may not map trivially to a particular qubit index.

Channel class.

> **Deprecated since version 1.3**
>
> The class `qiskit.pulse.channels.Channel` is deprecated as of Qiskit 1.3. It will be removed in Qiskit 2.0. The entire Qiskit Pulse package has been deprecated.

**Parameters**

**index** – Index of channel.

## Attributes

### index

Return the index of this channel. The index is a label for a control signal line typically mapped trivially to a qubit index. For instance, `DriveChannel(0)` labels the signal line driving the qubit labeled with index 0.

### name

Return the shorthand alias for this channel, which is based on its type and index.

### parameters

Parameters which determine the channel index.

### prefix

Type: `str | None`

Default value: `'u'`

A shorthand string prefix for characterizing the channel type.

## Methods

### is\_parameterized

`is_parameterized()`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/1.4/qiskit/pulse/channels.py#L137-L139)

Return True iff the channel is parameterized.

**Return type**

[bool](https://docs.python.org/3/library/functions.html#bool)