Function quantum_circuit::iqft()
← Back to Class quantum_circuit
Description
Apply \(N\)-qubit Inverse Quantum Fourier Transform (\(QFT^\dagger_N\)) to the circuit. The formula: \[QFT^\dagger_N\ket{\psi} = \frac{1}{\sqrt{N}} \sum_{x=0}^{N-1} \exp\left(\frac{-2\pi i kx}{N}\right) \ket{x}\]
quantum_circuit::iqft(qubit_targets, swap = true)Parameters
qubit_targets(array) — The target qubitsswap(boolean, optional) — Swap the qubits. The default value istrue
Return Value
quantum_circuit— Returns the instance of classquantum_circuit
Usage Example
import quantum
qc = quantum_circuit(3)
qc.x(0)
qc.iqft([0, 1, 2])