def controlled_x(self, q, rnd):
Gates.Z(q, 0)
if Measurement.rr_measurement(q, [PauliZ(), PauliX()], [0, 1],
rnd) == -1:
Gates.Z(q, 1)
Gates.H(q, 1)
Gates.Z(q, 0)
def all_bell_states(self, q, ix):
Gates.H(q, 0)
if ix >= 2:
Gates.X(q, 1)
Gates.CNOT(q, 0, 1)
if ix % 2 == 1:
Gates.Z(q, 0)
def bell_state(self, q, index):
assert q.length == 2
Gates.H(q, 0)
Gates.CNOT(q, 0, 1)
if index % 2 == 1:
Gates.Z(q, 1)
if index >= 2:
Gates.X(q, 1)
def controlled_x_general(self, q):
# Gates.CNOT(q, 0, 1)
items = [0.1, 0.9]
r1, r2, r3 = choice(items), choice(items), choice(items)
bad = [[0.1, 0.9, 0.9], [0.9, 0.9, 0.1]]
if [r1, r2, r3] in bad:
r1, r2, r3 = [0.1, 0.1, 0.1]
print r1, r2, r3
q.add_qubit()
#print "before measurement", q
p1 = self.copy_qubit(q, 1, 0, r1)
#print "after measurement", q
Gates.H(q, 0)
Gates.H(q, 2)
p2 = Measurement.rr_measurement(q, [PauliZ(), PauliZ()], [0, 2], r2)
Gates.H(q, 0)
Gates.H(q, 2)
if p2 == -1:
Gates.Z(q, 1)
if p1 != Measurement.rr_measurement(q, [PauliZ()], [0], r3):
Gates.X(q, 2)
#print "after CNOT", q
q.remove_qubit()
def check_a_b(self, q, alpha):
Gates.Z(q, 0)
Gates.RY(q, -2 * alpha, 0)
return not self.single_qubit(q)
def superposition_basis(self, q):
self.superposition(q)
Gates.Z(q, 0)
Gates.R1(q, pi, 1)
def sign_flip(self, q):
Gates.Z(q, 0)
print q
Gates.CNOT(q, iy, ix)
print q
m = Measurement.measure(q, ix)
print m, q
Gates.CNOT(q, iy, ix)
print m, q
Gates.H(q, iy)
print m, q
Gates.H(q, ix)
print m, q
def mZX(q, ix, iy):
Gates.H(q, iy)
Gates.CNOT(q, iy, ix)
m = Measurement.measure(q, ix)
Gates.CNOT(q, iy, ix)
Gates.H(q, iy)
print m, q
q = Qubits(2)
Gates.H(q, 0)
Gates.H(q, 1)
Gates.CY(q, 1, 0)
Gates.CZ(q, 0, 1)
Gates.Z(q, 0)
Gates.Z(q, 1)
print(q)
