qiskit.providers.basicaer.UnitarySimulatorPy

class UnitarySimulatorPy(configuration=None, provider=None)

Python implementation of a unitary simulator.

Base class for backends.

This method should initialize the module and its configuration, and raise an exception if a component of the module is not available.

パラメータ

• configuration (BackendConfiguration) – backend configuration

• provider (BaseProvider) – provider responsible for this backend

例外

QiskitError – if an error occurred when instantiating the backend.

__init__(configuration=None, provider=None)

Base class for backends.

This method should initialize the module and its configuration, and raise an exception if a component of the module is not available.

パラメータ

• configuration (BackendConfiguration) – backend configuration

• provider (BaseProvider) – provider responsible for this backend

例外

QiskitError – if an error occurred when instantiating the backend.

Methods

__init__([configuration, provider])	Base class for backends.
configuration()	Return the backend configuration.
name()	Return the backend name.
properties()	Return the backend properties.
provider()	Return the backend Provider.
run(qobj[, backend_options])	Run qobj asynchronously.
run_experiment(experiment)	Run an experiment (circuit) and return a single experiment result.
status()	Return the backend status.
version()	Return the backend version.

Attributes

DEFAULT_CONFIGURATION
DEFAULT_OPTIONS
MAX_QUBITS_MEMORY

configuration()

Return the backend configuration.

戻り値

the configuration for the backend.

戻り値の型

BackendConfiguration

name()

Return the backend name.

戻り値

the name of the backend.

戻り値の型

str

properties()

Return the backend properties.

戻り値

the configuration for the backend. If the backend does not support properties, it returns None.

戻り値の型

BackendProperties

provider()

Return the backend Provider.

戻り値

the Provider responsible for the backend.

戻り値の型

BaseProvider

run(qobj, backend_options=None)

Run qobj asynchronously.

パラメータ

• qobj (Qobj) – payload of the experiment

• backend_options (dict) – backend options

戻り値

derived from BaseJob

戻り値の型

BasicAerJob

Additional Information:

backend_options: Is a dict of options for the backend. It may contain
    * "initial_unitary": matrix_like
    * "chop_threshold": double

The "initial_unitary" option specifies a custom initial unitary
matrix for the simulator to be used instead of the identity
matrix. This size of this matrix must be correct for the number
of qubits inall experiments in the qobj.

The "chop_threshold" option specifies a truncation value for
setting small values to zero in the output unitary. The default
value is 1e-15.

Example::

    backend_options = {
        "initial_unitary": np.array([[1, 0, 0, 0],
                                     [0, 0, 0, 1],
                                     [0, 0, 1, 0],
                                     [0, 1, 0, 0]])
        "chop_threshold": 1e-15
    }

run_experiment(experiment)

Run an experiment (circuit) and return a single experiment result.

パラメータ

experiment (QobjExperiment) – experiment from qobj experiments list

戻り値

A result dictionary which looks something like:

{
"name": name of this experiment (obtained from qobj.experiment header)
"seed": random seed used for simulation
"shots": number of shots used in the simulation
"data":
    {
    "unitary": [[[0.0, 0.0], [1.0, 0.0]],
                [[1.0, 0.0], [0.0, 0.0]]]
    },
"status": status string for the simulation
"success": boolean
"time taken": simulation time of this single experiment
}

戻り値の型

dict

例外

• BasicAerError – if the number of qubits in the circuit is greater than 24.

• Note that the practical qubit limit is much lower than 24. –

status()

Return the backend status.

戻り値

the status of the backend.

戻り値の型

BackendStatus

version()

Return the backend version.

戻り値

the X.X.X version of the backend.

戻り値の型

str