qiskit-documentation/docs/api/qiskit/0.26/qiskit.pulse.builder.shift_...

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---
title: shift_phase
description: API reference for qiskit.pulse.builder.shift_phase
in_page_toc_min_heading_level: 1
python_api_type: function
python_api_name: qiskit.pulse.builder.shift_phase
---
# qiskit.pulse.builder.shift\_phase
<Function id="qiskit.pulse.builder.shift_phase" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.17/qiskit/pulse/builder.py" signature="shift_phase(phase, channel, name=None)">
Shift the `phase` of a pulse `channel`.
Examples:
```python
import math
from qiskit import pulse
d0 = pulse.DriveChannel(0)
with pulse.build() as pulse_prog:
pulse.shift_phase(math.pi, d0)
```
**Parameters**
* **phase** (`float`) Phase in radians to shift channel carrier signal by.
* **channel** ([`PulseChannel`](qiskit.pulse.channels#pulsechannel "qiskit.pulse.channels.PulseChannel")) Channel to shift phase of.
* **name** (`Optional`\[`str`]) Name of the instruction.
</Function>