Setting the file. One moment.
Subchapter 123.9
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Pulses are the analog signals that control the qubits in a quantum computer. With certain devices on Amazon Braket, you can access the pulse control feature to submit circuits using pulses. You can access pulse control through the Braket SDK, using OpenQASM 3.0, or directly through the Braket APIs.
Support for pulse control varies across devices, so check for support by first doing:
from braket.aws import AwsDevice
device =
For terminology and instructions on pulse controls with code snippets, see Pulse control on Amazon Braket (opens in a new tab). A tutorial with a working example can be found at Working with Hello Pulse (opens in a new tab). The API reference for pulse control in the Braket SDK can be found at braket.pulse (opens in a new tab).
Native gates are represented on some devices in terms of a gate name, a qubit set, and a pulse sequence that performs the operation on the device.
For working with native gates using pulses, see Accessing native gates using pulses (opens in a new tab).
Support for pulse control varies across devices, so check for supported gates and calibrations by first doing:
from braket.aws import AwsDevice
device = AwsDevice("<device-arn-that-supports-pulse-control>")
calibrations = device.gate_calibrationsHardware providers periodically calibrate the QPU, often more than once a day. The Braket SDK enables you to obtain the latest gate calibrations:
device.refresh_gate_calibrations()For an end-to-end working example, use Working with Hello Pulse (opens in a new tab) or the Amazon Braket pulse-control notebook examples (opens in a new tab). For native-gate-specific guidance, see Accessing native gates using pulses (opens in a new tab).