Fake Provider

qiskit.providers.fake_provider

Overview

The fake provider module in Qiskit contains fake (simulated) backend classes useful for testing the transpiler and other backend-facing functionality.

Example Usage

Here is an example of using a simulated backend for transpilation and running.

from qiskit import QuantumCircuit, transpile
from qiskit.providers.fake_provider import GenericBackendV2
from qiskit.visualization import plot_histogram
 
# Generate a 5-qubit simulated backend
backend = GenericBackendV2(num_qubits=5)
 
# Create a simple circuit
circuit = QuantumCircuit(3)
circuit.h(0)
circuit.cx(0,1)
circuit.cx(0,2)
circuit.measure_all()
circuit.draw('mpl')
 
# Transpile the ideal circuit to a circuit that can be directly executed by the backend
transpiled_circuit = transpile(circuit, backend)
transpiled_circuit.draw('mpl')
 
# Run the transpiled circuit using the simulated backend
job = backend.run(transpiled_circuit)
counts = job.result().get_counts()
plot_histogram(counts)

V2 Simulated Backends


`GenericBackendV2`(num_qubits[, basis_gates, ...])	Generic `BackendV2` implementation with a configurable constructor.

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