class TestParameterCtrlState(QiskitTestCase):
    """Test gate equality with ctrl_state parameter."""
    @data((RXGate(0.5), CRXGate(0.5)), (RYGate(0.5), CRYGate(0.5)),
          (RZGate(0.5), CRZGate(0.5)), (XGate(), CXGate()),
          (YGate(), CYGate()), (ZGate(), CZGate()),
          (U1Gate(0.5), CU1Gate(0.5)), (SwapGate(), CSwapGate()),
          (HGate(), CHGate()), (U3Gate(0.1, 0.2, 0.3), CU3Gate(0.1, 0.2, 0.3)))
    @unpack
    def test_ctrl_state_one(self, gate, controlled_gate):
        """Test controlled gates with ctrl_state
        See https://github.com/Qiskit/qiskit-terra/pull/4025
        """
        self.assertEqual(gate.control(1, ctrl_state='1'), controlled_gate)
예제 #2
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def random_clifford_circuit(num_qubits, num_gates, gates='all', seed=None):
    """Generate a pseudo random Clifford circuit."""

    if gates == 'all':
        if num_qubits == 1:
            gates = ['i', 'x', 'y', 'z', 'h', 's', 'sdg', 'v', 'w']
        else:
            gates = [
                'i', 'x', 'y', 'z', 'h', 's', 'sdg', 'v', 'w', 'cx', 'cz',
                'swap'
            ]

    instructions = {
        'i': (IGate(), 1),
        'x': (XGate(), 1),
        'y': (YGate(), 1),
        'z': (ZGate(), 1),
        'h': (HGate(), 1),
        's': (SGate(), 1),
        'sdg': (SdgGate(), 1),
        'v': (VGate(), 1),
        'w': (WGate(), 1),
        'cx': (CXGate(), 2),
        'cz': (CZGate(), 2),
        'swap': (SwapGate(), 2)
    }

    if isinstance(seed, np.random.RandomState):
        rng = seed
    else:
        rng = np.random.RandomState(seed=seed)

    samples = rng.choice(gates, num_gates)

    circ = QuantumCircuit(num_qubits)

    for name in samples:
        gate, nqargs = instructions[name]
        qargs = rng.choice(range(num_qubits), nqargs, replace=False).tolist()
        circ.append(gate, qargs)

    return circ
 def test_controlled_z(self):
     """Test creation of controlled z gate"""
     self.assertEqual(ZGate().control(), CZGate())