QasmSimulatorPy

class QasmSimulatorPy(configuration=None, provider=None, **fields)

Bases: BackendV1

Python implementation of a qasm simulator.

Initialize a backend class

Parameters

• configuration (BackendConfiguration) -- A backend configuration object for the backend object.

• provider (qiskit.providers.Provider) -- Optionally, the provider object that this Backend comes from.

• fields -- kwargs for the values to use to override the default options.

Raises

AttributeError -- if input field not a valid options

In addition to the public abstract methods, subclasses should also implement the following private methods:

classmethod _default_options()

Return the default options

This method will return a qiskit.providers.Options subclass object that will be used for the default options. These should be the default parameters to use for the options of the backend.

Returns

A options object with

default values set

Return type

qiskit.providers.Options

Methods

configuration	Return the backend configuration.
name	Return the backend name.
properties	Return the backend properties.
provider	Return the backend Provider.
run	Run qobj asynchronously.
run_experiment	Run an experiment (circuit) and return a single experiment result.
set_options	Set the options fields for the backend
status	Return the backend status.

Attributes

DEFAULT_CONFIGURATION = {'backend_name': 'qasm_simulator', 'backend_version': '2.1.0', 'basis_gates': ['u1', 'u2', 'u3', 'rz', 'sx', 'x', 'cx', 'id', 'unitary'], 'conditional': True, 'coupling_map': None, 'description': 'A python simulator for qasm experiments', 'gates': [{'name': 'u1', 'parameters': ['lambda'], 'qasm_def': 'gate u1(lambda) q { U(0,0,lambda) q; }'}, {'name': 'u2', 'parameters': ['phi', 'lambda'], 'qasm_def': 'gate u2(phi,lambda) q { U(pi/2,phi,lambda) q; }'}, {'name': 'u3', 'parameters': ['theta', 'phi', 'lambda'], 'qasm_def': 'gate u3(theta,phi,lambda) q { U(theta,phi,lambda) q; }'}, {'name': 'rz', 'parameters': ['phi'], 'qasm_def': 'gate rz(phi) q { U(0,0,phi) q; }'}, {'name': 'sx', 'parameters': [], 'qasm_def': 'gate sx(phi) q { U(pi/2,7*pi/2,pi/2) q; }'}, {'name': 'x', 'parameters': [], 'qasm_def': 'gate x q { U(pi,7*pi/2,pi/2) q; }'}, {'name': 'cx', 'parameters': [], 'qasm_def': 'gate cx c,t { CX c,t; }'}, {'name': 'id', 'parameters': [], 'qasm_def': 'gate id a { U(0,0,0) a; }'}, {'name': 'unitary', 'parameters': ['matrix'], 'qasm_def': 'unitary(matrix) q1, q2,...'}], 'local': True, 'max_shots': 0, 'memory': True, 'n_qubits': 24, 'open_pulse': False, 'simulator': True, 'url': 'https://github.com/Qiskit/qiskit-terra'}

DEFAULT_OPTIONS = {'chop_threshold': 1e-15, 'initial_statevector': None}

MAX_QUBITS_MEMORY = 28

SHOW_FINAL_STATE = False

options

Return the options for the backend

The options of a backend are the dynamic parameters defining how the backend is used. These are used to control the run() method.

version = 1