from projectq import MainEngine
from projectq.backends import CircuitDrawer

import teleport

if __name__ == "__main__":
    # create a main compiler engine with a simulator backend:
    drawing_engine = CircuitDrawer()
    locations = {0: 1, 1: 2, 2: 0}
    drawing_engine.set_qubit_locations(locations)
    eng = MainEngine(drawing_engine)

    # we just want to draw the teleportation circuit
    def create_state(eng, qb):
        pass

    # run the teleport and then, let Bob try to uncompute his qubit:
    teleport.run_teleport(eng, create_state, verbose=False)

    # print latex code to draw the circuit:
    print(drawing_engine.get_latex())
示例#2
0
def zoo_profile():
    """Generate and display the zoo of quantum gates."""
    # create a main compiler engine with a drawing backend
    drawing_engine = CircuitDrawer()
    locations = {0: 1, 1: 2, 2: 0, 3: 3}
    drawing_engine.set_qubit_locations(locations)
    main_eng = MainEngine(drawing_engine)
    qureg = main_eng.allocate_qureg(4)

    # define a zoo of gates
    te_gate = TimeEvolution(0.5, 0.1 * QubitOperator('X0 Y2'))

    def add(x, y):
        return x, y + 1

    zoo = [
        (X, 3),
        (Y, 2),
        (Z, 0),
        (Rx(0.5), 2),
        (Ry(0.5), 1),
        (Rz(0.5), 1),
        (Ph(0.5), 0),
        (S, 3),
        (T, 2),
        (H, 1),
        (Toffoli, (0, 1, 2)),
        (Barrier, None),
        (Swap, (0, 3)),
        (SqrtSwap, (0, 1)),
        (get_inverse(SqrtSwap), (2, 3)),
        (SqrtX, 2),
        (C(get_inverse(SqrtX)), (0, 2)),
        (C(Ry(0.5)), (2, 3)),
        (CNOT, (2, 1)),
        (Entangle, None),
        (te_gate, None),
        (QFT, None),
        (Tensor(H), None),
        (BasicMathGate(add), (2, 3)),
        (All(Measure), None),
    ]

    # apply them
    for gate, pos in zoo:
        if pos is None:
            gate | qureg
        elif isinstance(pos, tuple):
            gate | tuple(qureg[i] for i in pos)
        else:
            gate | qureg[pos]

    main_eng.flush()

    # generate latex code to draw the circuit
    s = drawing_engine.get_latex()
    prefix = 'zoo'
    with open('{}.tex'.format(prefix), 'w') as f:
        f.write(s)

    # compile latex source code and open pdf file
    os.system('pdflatex {}.tex'.format(prefix))
    openfile('{}.pdf'.format(prefix))