IonQClient

class IonQClient

Bases: QuantumBaseClient[AlgoType, BraketJobMeta, QiskitCircuit]

Client that executes quantum circuits on IonQ hardware via Amazon Braket.

Connects to IonQ trapped-ion devices through the Amazon Braket service and runs circuits on the specified device. Accepts any algorithm conforming to QuantumAlgoProtocol via the algo parameter.

Methods

__init__	Initialize an IonQClient.
solve	Call the solver service to solve the given optimization problem.
version	Return the backend version string.

Attributes

acceptable_degrees	Polynomial degrees accepted by the algorithm for the objective and constraints.
algo	The algorithm class used by this client.
device	Name of the target IonQ device.
provider	Provider used to connect to the IonQ device.
parameters	Algorithm parameters instance.

__init__(

algo: type[AlgoType],

device: str = 'Aria1',

provider: AwsSession | None = None,

) → None

Initialize an IonQClient.

Parameters:

• algo (type[AlgoType]) – The algorithm class to use (e.g., QAOA).

• device (str) – Name or ARN of the IonQ device. Defaults to the first non-underscore member of braket.devices.Devices.IonQ.

• provider (AwsSession | None) – Provider used to connect to the IonQ device. Currently only Braket connection is supported; set to an braket.aws.AwsSession to configure credentials.

solve(objective: Poly | Matrix, constraints: ConstraintList | None, dry_run: bool = False) → CustomClientResultProtocol | None

Call the solver service to solve the given optimization problem.

Parameters:

• objective (Poly | Matrix) – The objective function to minimize.

• constraints (ConstraintList | None) – Constraints for the problem. If None, no constraints are applied.

• dry_run (bool) – If True, validate inputs without executing circuits and return None.

Returns:

The algorithm result, or None if dry_run is True.

Return type:

CustomClientResultProtocol | None

version() → str

Return the backend version string.

property acceptable_degrees: AcceptableDegrees

Polynomial degrees accepted by the algorithm for the objective and constraints.

property algo: type[AlgoType]

The algorithm class used by this client.

property device: str

Name of the target IonQ device.

parameters

Algorithm parameters instance. The concrete type depends on the algorithm; for QAOA this is QAOA.Parameters. Modify this to configure the algorithm before calling solve().

property provider: AwsSession | None

Provider used to connect to the IonQ device.

Currently only Braket connection is supported; set to an braket.aws.AwsSession to configure credentials. Set to None to clear configured credentials.