def get_native_example_final_state_vector()

in testing/qiskit_helpers.py [0:0]

• 17 lines of code
• 5 McCabe index (conditional complexity)

def get_native_example_final_state_vector(initial_state_ket_str: str = "000") -> Statevector:
    n_qubits = len(initial_state_ket_str)
    assert n_qubits == 3, print("The current qiskit native testing example is strictly 3 qubits")

    simulator = Aer.get_backend('statevector_simulator')

    qc = QuantumCircuit(n_qubits)

    initial_state = Statevector.from_label(initial_state_ket_str)
    qc.initialize(initial_state, range(n_qubits))

    # Create entanglement between qubits 1 and 2
    qc.h(1)  # Apply Hadamard gate on qubit 1
    qc.cx(1, 2)  # Apply CNOT gate with qubit 1 as control and qubit 2 as target

    # Prepare the state to be teleported on qubit 0
    qc.h(0)  # Apply Hadamard gate on qubit 0
    qc.z(0)  # Apply Pauli-Z gate on qubit 0

    # Perform Bell measurement on qubits 0 and 1
    qc.cx(0, 1)  # Apply CNOT gate with qubit 0 as control and qubit 1 as target
    qc.h(0)  # Apply Hadamard gate on qubit 0

    # Simulate the circuit
    job = execute(qc, simulator)
    result = job.result()

    # Get the state vector
    state_vector = result.get_statevector()

    return state_vector