Deutsch Jozsa algorithm

from qlasskit import qlassf, Qint


@qlassf
def f(a: Qint[4]) -> bool:
    return a > 7
f.export("qiskit").draw("mpl")
_images/878d757f7848ddf94fc95261a7dda1eadf6657f248c5bd75f4c457ef2f25684e.png
from qlasskit.algorithms import DeutschJozsa

q_algo = DeutschJozsa(f)
qc = q_algo.export("qiskit")
qc.draw("mpl")
_images/f22afd1aefea08b0ddd0bb9d57476091945219310c35b884c66da5d068138460.png
from qiskit import QuantumCircuit, transpile
from qiskit.visualization import plot_histogram
from qiskit_aer import AerSimulator

qc.measure_all()
simulator = AerSimulator()
circ = transpile(qc, simulator)
result = simulator.run(circ).result()
counts = result.get_counts(circ)

counts_readable = q_algo.decode_counts(counts)
plot_histogram(counts_readable)
_images/8c83629ef11e24d381e5775c6781e2fea054e9eeb02f25de6d6806dc1357b001.png