QasmBackendConfiguration

class qiskit.providers.models.QasmBackendConfiguration(backend_name, backend_version, n_qubits, basis_gates, gates, local, simulator, conditional, open_pulse, memory, max_shots, coupling_map, supported_instructions=None, dynamic_reprate_enabled=False, rep_delay_range=None, default_rep_delay=None, max_experiments=None, sample_name=None, n_registers=None, register_map=None, configurable=None, credits_required=None, online_date=None, display_name=None, description=None, tags=None, dt=None, dtm=None, processor_type=None, parametric_pulses=None, **kwargs)

Bases: object(opens in a new tab)

Class representing an OpenQASM 2.0 Backend Configuration.

backend_name

backend_version

n_qubits

basis_gates

gates

local

simulator

conditional

open_pulse

memory

max_shots

Initialize a QasmBackendConfiguration Object

Parameters

• backend_name (str(opens in a new tab)) – The backend name

• backend_version (str(opens in a new tab)) – The backend version in the form X.Y.Z

• n_qubits (int(opens in a new tab)) – the number of qubits for the backend

• basis_gates (list(opens in a new tab)) – The list of strings for the basis gates of the backends

• gates (list(opens in a new tab)) – The list of GateConfig objects for the basis gates of the backend

• local (bool(opens in a new tab)) – True if the backend is local or False if remote

• simulator (bool(opens in a new tab)) – True if the backend is a simulator

• conditional (bool(opens in a new tab)) – True if the backend supports conditional operations

• open_pulse (bool(opens in a new tab)) – True if the backend supports OpenPulse

• memory (bool(opens in a new tab)) – True if the backend supports memory

• max_shots (int(opens in a new tab)) – The maximum number of shots allowed on the backend

• coupling_map (list(opens in a new tab)) – The coupling map for the device

• supported_instructions (List[str(opens in a new tab)]) – Instructions supported by the backend.

• dynamic_reprate_enabled (bool(opens in a new tab)) – whether delay between programs can be set dynamically (ie via rep_delay). Defaults to False.

• rep_delay_range (List[float(opens in a new tab)]) – 2d list defining supported range of repetition delays for backend in μs. First entry is lower end of the range, second entry is higher end of the range. Optional, but will be specified when dynamic_reprate_enabled=True.

• default_rep_delay (float(opens in a new tab)) – Value of rep_delay if not specified by user and dynamic_reprate_enabled=True.

• max_experiments (int(opens in a new tab)) – The maximum number of experiments per job

• sample_name (str(opens in a new tab)) – Sample name for the backend

• n_registers (int(opens in a new tab)) – Number of register slots available for feedback (if conditional is True)

• register_map (list(opens in a new tab)) – An array of dimension n_qubits X n_registers that specifies whether a qubit can store a measurement in a certain register slot.

• configurable (bool(opens in a new tab)) – True if the backend is configurable, if the backend is a simulator

• credits_required (bool(opens in a new tab)) – True if backend requires credits to run a job.

• online_date (datetime.datetime(opens in a new tab)) – The date that the device went online

• display_name (str(opens in a new tab)) – Alternate name field for the backend

• description (str(opens in a new tab)) – A description for the backend

• tags (list(opens in a new tab)) – A list of string tags to describe the backend

• dt (float(opens in a new tab)) – Qubit drive channel timestep in nanoseconds.

• dtm (float(opens in a new tab)) – Measurement drive channel timestep in nanoseconds.

• processor_type (dict(opens in a new tab)) –

  Processor type for this backend. A dictionary of the form {"family": <str>, "revision": <str>, segment: <str>} such as {"family": "Canary", "revision": "1.0", segment: "A"}.

  • family: Processor family of this backend.
  • revision: Revision version of this processor.
  • segment: Segment this processor belongs to within a larger chip.

• parametric_pulses (list(opens in a new tab)) – A list of pulse shapes which are supported on the backend. For example: ['gaussian', 'constant']

• **kwargs – optional fields

Attributes

num_qubits

Methods

from_dict

to_dict