f1b5cac7d034cf174e4af2a260c8feea2e360b00,qiskit/aqua/components/iqfts/standard.py,Standard,construct_circuit,#Standard#Any#Any#Any#,48

Before Change

            // so linalg.dft is correct for IQFT
            return linalg.dft(2 ** self._num_qubits, scale="sqrtn")
        elif mode == "circuit":
            if circuit:
                if not register:
                    raise AquaError("A QuantumRegister needs to be specified with the input QuantumCircuit.")
            else:
                circuit = QuantumCircuit()
                if not register:
                    register = QuantumRegister(self._num_qubits, name="q")
            if not circuit.has_register(register):
                circuit.add_register(register)

            for j in reversed(range(self._num_qubits)):
                circuit.u2(0, np.pi, register[j])
                for k in reversed(range(j)):
                    lam = -1.0 * pi / float(2 ** (j - k))

After Change

            // so linalg.dft is correct for IQFT
            return linalg.dft(2 ** self._num_qubits, scale="sqrtn")
        elif mode == "circuit":
            circuit, register = set_up(circuit, register, self._num_qubits)

            for j in reversed(range(self._num_qubits)):
                circuit.u2(0, np.pi, register[j])

Instances