def test_BosonSplitting(self):
n_i, N = 1, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
initialParticles = [[1, 0, 0]] # 1 boson
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], \
[], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
circuit.append(cirq.X(hReg[0][0]),
strategy=cirq.InsertStrategy.NEW_THEN_INLINE
) # first particle emits
g_a = g_b = 1 # equal probability of splitting into fermion a or b
main.U_p(circuit, 2, n_i, 0, pReg, hReg, w_hReg, wReg, g_a, g_b)
simulator = cirq.Simulator()
# Output looks like |h[1]h[0], p1[2]p1[1]p0[0], p0[2]p0[1]p0[0], work qubits⟩
qubitOrder = hReg[0][::-1] + pReg[1][::-1] + pReg[
0][::-1] + wReg + w_hReg
result = simulator.simulate(circuit, qubit_order=qubitOrder)
waveVectorString = str(
result) # outputs wave-vector in order qubitOrder
vectorString = waveVectorString.split('output vector: ', 1)[1]
# Found it outputs in order |a anti_a⟩ + |b anti_b⟩ + |anti_a a⟩ + |anti_b b⟩
self.assertEqual(
"0.5|01100110000000⟩ + 0.5|01101111000000⟩ + 0.5|01110100000000⟩ + 0.5|01111101000000⟩",
vectorString)
def test_OneBosonOneAFermion(self):
n_i, N = 2, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
Delta_phi, Delta_a, Delta_b, = .25, .4, .7
initialParticles = [[1, 0, 0], [0, 0, 1]] # boson, f_a fermion
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], [], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
main.uCount(circuit, 0, n_i, L, pReg, wReg, n_aReg, w_phiReg, n_bReg,
w_phiReg, n_phiReg, w_phiReg)
main.uE(circuit, L, n_i, 0, n_phiReg, w_phiReg, n_aReg, w_aReg, n_bReg,
w_bReg, wReg, eReg, Delta_phi, Delta_a, Delta_b)
simulator = cirq.Simulator()
qubitOrder = pReg[0][::-1] + pReg[
1][::
-1] + eReg + n_phiReg[::
-1] + n_aReg[::
-1] + n_bReg[::
-1] + w_phiReg + w_aReg + w_bReg + wReg
result = simulator.simulate(circuit, qubit_order=qubitOrder)
waveVectorString = str(
result
) # outputs wavevector in order pReg[1], pReg[0] in format [MSB..LSB]]
vectorString = waveVectorString.split('output vector: ', 1)[1]
self.assertEqual(
"0.316|001100001010000000000⟩ + 0.949|001100101010000000000⟩",
vectorString)
def test_TwoQubitBosonEmissionHistory(self):
n_i, N = 2, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
# we want the f_a fermion and the boson to emit, so make P_b and P_phi very small but avoid div0 errors
P_phi = 1
P_a = P_b = .0001
initialParticles = [[0, 0, 1], [1, 0, 0]] # 1 f_a fermion, 1 boson
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], \
[], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
main.uCount(circuit, 0, n_i, L, pReg, wReg, n_aReg, w_phiReg, n_bReg,
w_phiReg, n_phiReg, w_phiReg)
circuit.append(cirq.X(eReg[0]),
strategy=cirq.InsertStrategy.NEW_THEN_INLINE
) # turn emission bit on
main.U_h(circuit, 2, n_i, 0, n_phiReg, w_phiReg, n_aReg, w_aReg,
n_bReg, w_bReg, wReg, eReg, pReg, hReg, w_hReg, P_phi, P_a,
P_b)
circuit.append(cirq.measure(*eReg, key='e'))
circuit.append(
cirq.measure(*TestHelpers.reverse(TestHelpers.flatten(hReg)),
key='h'))
circuit.append(
cirq.measure(*TestHelpers.flatten([n_phiReg, n_aReg, n_bReg]),
key='n'))
circuit.append(
cirq.measure(*TestHelpers.reverse(TestHelpers.flatten([pReg])),
key='p'))
circuit.append(
cirq.measure(*TestHelpers.flatten([wReg, w_phiReg, w_aReg,
w_bReg]),
key='w'))
simulator = cirq.Simulator()
result = simulator.simulate(circuit)
np.testing.assert_array_equal(
np.array([0]),
result.measurements['e']) # emission bit should be turned off
# history reg should be 10 (only particle 2 (0 indexed), the boson should have emitted)
np.testing.assert_array_equal(np.array([1, 0]),
result.measurements['h'])
np.testing.assert_array_equal(np.array([0, 0, 0, 0, 0, 0]),
result.measurements['n'])
np.testing.assert_array_equal(np.array([0, 0, 0, 1, 0, 0]),
result.measurements['p'])
np.testing.assert_array_equal(np.array([0, 0, 0, 0, 0, 0, 0, 0]),
result.measurements['w'])
def test_oneQubit(self):
n_i, N = 1, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
initialParticles = [[0, 0, 1]]
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], [], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
simulator = cirq.Simulator()
circuit.append(cirq.measure(*pReg[0], key='x'))
result = simulator.simulate(circuit)
firstParticle = result.measurements['x']
np.testing.assert_array_equal(firstParticle, np.array([0, 0, 1]))
def test_threeQubits(self):
n_i, N = 2, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
initialParticles = [[0, 0, 1], [0, 1, 0]]
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], [], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
simulator = cirq.Simulator()
circuit.append(cirq.measure(*TestHelpers.flatten(pReg), key='x'))
result = simulator.simulate(circuit)
particles = result.measurements['x']
np.testing.assert_array_equal(particles,
np.array([0, 0, 1, 0, 1, 0, 0, 0, 0]))
def test_rotateOneBoson(self):
n_i, N = 1, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
u = .5
initialParticles = [[1, 0, 0]]
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], [], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
for p_k in pReg:
circuit.append(
cirq.ry(2 * math.asin(-u)).controlled().on(p_k[2], p_k[0]))
simulator = cirq.Simulator()
circuit.append(cirq.measure(*pReg[0], key='x'))
result = simulator.simulate(circuit)
firstParticle = result.measurements['x']
np.testing.assert_array_equal(firstParticle, np.array([1, 0, 0]))
def test_countTwoBosonsOneAFermionOneAAntifermion(self):
n_i, N = 4, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
initialParticles = [[1, 0, 0], [1, 0, 0], [0, 0, 1],
[0, 1, 1]] #2 bosons, f_a fermion, f_a antifermion
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], [], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
main.uCount(circuit, 0, n_i, L, pReg, wReg, n_aReg, w_phiReg, n_bReg,
w_phiReg, n_phiReg, w_phiReg)
# measure in order n_phi, n_a, n_b in format [LSB, MSB]
circuit.append(
cirq.measure(*TestHelpers.flatten([n_phiReg, n_aReg, n_bReg]),
key='x'))
simulator = cirq.Simulator()
result = simulator.simulate(circuit)
particles = result.measurements['x']
np.testing.assert_array_equal(particles,
np.array([0, 1, 0, 0, 1, 0, 0, 0, 0]))
def test_rotateBosonAndFermionB(self):
n_i, N = 2, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
u = .5
initialParticles = [[1, 0, 0], [
1, 0, 1
]] # boson and f_a fermion described in [LSB, .. , MSB] format
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], [], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
for p_k in pReg:
circuit.append(
cirq.ry(2 * math.asin(-u)).controlled().on(p_k[2], p_k[0]))
simulator = cirq.Simulator()
result = simulator.simulate(circuit)
waveVectorString = str(
result
) # outputs wavevector in order pReg[1], pReg[0] in format [MSB..LSB]
vectorString = waveVectorString.split('output vector: ', 1)[1]
self.assertEqual(vectorString, "0.5|100100⟩ + 0.866|101100⟩")
def test_countTwoBosonsOneBFermion(self):
n_i, N = 3, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
initialParticles = [[1, 0, 0], [1, 0, 1],
[1, 0, 0]] #boson, f_b fermion, boson
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], [], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
# Currently altered to use only w_phiReg to save qubits (done for rest of tests as well)
main.uCount(circuit, 0, n_i, L, pReg, wReg, n_aReg, w_phiReg, n_bReg,
w_phiReg, n_phiReg, w_phiReg)
# measure in order n_phi, n_a, n_b in format [LSB, MSB]
circuit.append(
cirq.measure(*TestHelpers.flatten([n_phiReg, n_aReg, n_bReg]),
key='x'))
simulator = cirq.Simulator()
result = simulator.simulate(circuit)
particles = result.measurements['x']
np.testing.assert_array_equal(particles,
np.array([0, 1, 0, 0, 0, 0, 1, 0, 0]))
def test_AntiFermionEmission(self):
n_i, N = 1, 1
L = int(math.floor(math.log(N + n_i, 2)) + 1)
initialParticles = [[1, 1, 1]] # 1 f_b anti-fermion
pReg, hReg, w_hReg, eReg, wReg, n_aReg, w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg = [], [], [], [], [], [], \
[], [], [], [], []
main.allocateQubs(N, n_i, L, pReg, hReg, w_hReg, eReg, wReg, n_aReg,
w_aReg, n_bReg, w_bReg, n_phiReg, w_phiReg)
circuit = cirq.Circuit()
main.intializeParticles(circuit, pReg, initialParticles)
circuit.append(cirq.X(hReg[0][0]),
strategy=cirq.InsertStrategy.NEW_THEN_INLINE
) # first particle emits
main.U_p(circuit, 2, n_i, 0, pReg, hReg, w_hReg, wReg, .5, .5)
circuit.append(
cirq.measure(*TestHelpers.reverse(TestHelpers.flatten(hReg)),
key='h'))
circuit.append(
cirq.measure(*TestHelpers.reverse(TestHelpers.flatten([pReg])),
key='p'))
circuit.append(
cirq.measure(*TestHelpers.flatten([wReg, w_hReg]), key='w'))
simulator = cirq.Simulator()
result = simulator.simulate(circuit)
# history reg should be 01 (only particle 1, the f_a fermion should have emitted)
np.testing.assert_array_equal(np.array([0, 1]),
result.measurements['h'])
np.testing.assert_array_equal(np.array([0, 0, 1, 1, 1, 1]),
result.measurements['p'])
np.testing.assert_array_equal(np.array([0, 0, 0, 0, 0, 0]),
result.measurements['w'])
