def w_state(self, q):
Gates.X(q, 0)
power = 1
missedpower = -1
while power < q.length:
oldpower = power
power = power * 2
if power > q.length:
power = q.length
missedpower = oldpower
Gates.H(q, power - 1)
for ix in range(oldpower - 1):
index = oldpower + ix
if ix < q.length and index < q.length:
Gates.CCNOT(q, ix, power - 1, index)
if ix < q.length and index < q.length:
Gates.CNOT(q, index, ix)
if index < q.length:
Gates.CNOT(q, index, power - 1)
Gates.CNOT(q, power - 1, oldpower - 1)
if missedpower > -1:
Gates.CCNOT(q, 0, q.length - 1, 1)
Gates.CCNOT(q, 1, 0, q.length - 1)
m = Measurement.rr_measure(q, q.length - 1, 0)
Gates.CCNOT(q, 1, 0, q.length - 1)
Gates.CNOT(q, q.length - 1, 0)
Gates.CNOT(q, q.length - 1, 1)
return q
def w_state(self, q):
Gates.X(q, 0)
power = 1
while power < q.length:
oldpower = power
power = power * 2
Gates.H(q, power - 1)
for ix in range(oldpower - 1):
index = oldpower + ix
Gates.CCNOT(q, ix, power - 1, index)
Gates.CNOT(q, index, ix)
Gates.CNOT(q, index, power - 1)
Gates.CNOT(q, power - 1, oldpower - 1)
return q
def fredkin_gate(self, q):
Gates.CCNOT(q, 0, 1, 2)
Gates.CCNOT(q, 0, 2, 1)
Gates.CCNOT(q, 0, 1, 2)
def toffoli_gate(self, q):
Gates.CCNOT(q, 0, 1, 2)