def circuit_tester(prep, test_circ):
for gate in test_circ.gates():
id = gate.gate_id()
target = gate.target()
control = gate.control()
num_qubits = 5
qc1 = Computer(num_qubits)
qc2 = Computer(num_qubits)
qc1.apply_circuit_safe(prep)
qc2.apply_circuit_safe(prep)
qc1.apply_gate_safe(gate)
qc2.apply_gate(gate)
C1 = qc1.get_coeff_vec()
C2 = qc2.get_coeff_vec()
diff_vec = [(C1[i] - C2[i]) * np.conj(C1[i] - C2[i])
for i in range(len(C1))]
diff_norm = np.sum(diff_vec)
if (np.sum(diff_vec) != (0.0 + 0.0j)):
print('|C - C_safe|F^2 control target id')
print('----------------------------------------')
print(diff_norm, ' ', control, ' ', target,
' ', id)
return diff_norm
def test_cX_gate(self):
# test the cX/CNOT gate
nqubits = 2
basis0 = make_basis('00') # basis0:|00>
basis1 = make_basis('01') # basis1:|10>
basis2 = make_basis('10') # basis2:|01>
basis3 = make_basis('11') # basis3:|11>
computer = Computer(nqubits)
CNOT = gate('CNOT', 0, 1)
# test CNOT|00> = |00>
computer.set_state([(basis0, 1.0)])
computer.apply_gate(CNOT)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
coeff2 = computer.coeff(basis2)
coeff3 = computer.coeff(basis3)
assert coeff0 == approx(1.0, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
assert coeff2 == approx(0, abs=1.0e-16)
assert coeff3 == approx(0, abs=1.0e-16)
# test CNOT|10> = |11>
computer.set_state([(basis1, 1.0)])
computer.apply_gate(CNOT)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
coeff2 = computer.coeff(basis2)
coeff3 = computer.coeff(basis3)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
assert coeff2 == approx(0, abs=1.0e-16)
assert coeff3 == approx(1, abs=1.0e-16)
# test CNOT|01> = |01>
computer.set_state([(basis2, 1.0)])
computer.apply_gate(CNOT)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
coeff2 = computer.coeff(basis2)
coeff3 = computer.coeff(basis3)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
assert coeff2 == approx(1, abs=1.0e-16)
assert coeff3 == approx(0, abs=1.0e-16)
# test CNOT|11> = |10>
computer.set_state([(basis3, 1.0)])
computer.apply_gate(CNOT)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
coeff2 = computer.coeff(basis2)
coeff3 = computer.coeff(basis3)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1 == approx(1, abs=1.0e-16)
assert coeff2 == approx(0, abs=1.0e-16)
assert coeff3 == approx(0, abs=1.0e-16)
with pytest.raises(ValueError):
gate('CNOT', 0, 1.0)
def test_cY_gate(self):
# test the cY gate
nqubits = 2
basis0 = make_basis('00') # basis0:|00>
basis1 = make_basis('01') # basis1:|10>
basis2 = make_basis('10') # basis2:|01>
basis3 = make_basis('11') # basis3:|11>
computer = Computer(nqubits)
cY = gate('cY', 0, 1)
# test cY|00> = |00>
computer.set_state([(basis0, 1.0)])
computer.apply_gate(cY)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
coeff2 = computer.coeff(basis2)
coeff3 = computer.coeff(basis3)
assert coeff0 == approx(1, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
assert coeff2 == approx(0, abs=1.0e-16)
assert coeff3 == approx(0, abs=1.0e-16)
# test cY|01> = |01>
computer.set_state([(basis2, 1.0)])
computer.apply_gate(cY)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
coeff2 = computer.coeff(basis2)
coeff3 = computer.coeff(basis3)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
assert coeff2 == approx(1, abs=1.0e-16)
assert coeff3 == approx(0, abs=1.0e-16)
# test cY|10> = i|11>
computer.set_state([(basis1, 1.0)])
computer.apply_gate(cY)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
coeff2 = computer.coeff(basis2)
coeff3 = computer.coeff(basis3)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
assert coeff2 == approx(0, abs=1.0e-16)
assert coeff3.imag == approx(1, abs=1.0e-16)
# test cY|11> = -i|10>
computer.set_state([(basis3, 1.0)])
computer.apply_gate(cY)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
coeff2 = computer.coeff(basis2)
coeff3 = computer.coeff(basis3)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1.imag == approx(-1.0, abs=1.0e-16)
assert coeff2 == approx(0, abs=1.0e-16)
assert coeff3 == approx(0, abs=1.0e-16)
def test_Z_gate(self):
# test the Pauli Y gate
nqubits = 1
basis0 = make_basis('0')
basis1 = make_basis('1')
computer = Computer(nqubits)
Z = gate('Z', 0, 0)
# test Z|0> = |0>
computer.apply_gate(Z)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
assert coeff0 == approx(1, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
# test Z|1> = -|1>
computer.set_state([(basis1, 1.0)])
computer.apply_gate(Z)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1 == approx(-1.0, abs=1.0e-16)
def test_Y_gate(self):
# test the Pauli Y gate
nqubits = 1
basis0 = make_basis('0')
basis1 = make_basis('1')
computer = Computer(nqubits)
Y = gate('Y', 0, 0)
# test Y|0> = i|1>
computer.apply_gate(Y)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1.imag == approx(1.0, abs=1.0 - 16)
# test Y|1> = -i|0>
computer.set_state([(basis1, 1.0)])
computer.apply_gate(Y)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
assert coeff0.imag == approx(-1, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
def test_X_gate(self):
# test the Pauli X gate
nqubits = 1
basis0 = make_basis('0')
basis1 = make_basis('1')
computer = Computer(nqubits)
X = gate('X', 0)
# test X|0> = |1>
computer.apply_gate(X)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
assert coeff0 == approx(0, abs=1.0e-16)
assert coeff1 == approx(1, abs=1.0e-16)
# test X|1> = |0>
computer.set_state([(basis1, 1.0)])
computer.apply_gate(X)
coeff0 = computer.coeff(basis0)
coeff1 = computer.coeff(basis1)
assert coeff0 == approx(1, abs=1.0e-16)
assert coeff1 == approx(0, abs=1.0e-16)
def test_computer(self):
print('\n')
# test that 1 - 1 = 0
# print('\n'.join(qc.str()))
X = gate('X', 0, 0)
print(X)
Y = gate('Y', 0, 0)
print(Y)
Z = gate('Z', 0, 0)
print(Z)
H = gate('H', 0, 0)
print(H)
R = gate('R', 0, 0, 0.1)
print(R)
S = gate('S', 0, 0)
print(S)
T = gate('T', 0, 0)
print(T)
cX = gate('cX', 0, 1)
print(cX)
cY = gate('cY', 0, 1)
print(cY)
cZ = gate('cZ', 0, 1)
print(cZ)
# qcircuit = Circuit()
# qcircuit.add(qg)
# qcircuit.add(Gate(GateType.Hgate,1,1));
# print('\n'.join(qcircuit.str()))
# self.assertEqual(subtract(1, 1), 0)
computer = Computer(16)
# print(repr(computer))
# circuit = Circuit()
# circuit.add(X)
for i in range(3000):
computer.apply_gate(X)
computer.apply_gate(Y)
computer.apply_gate(Z)
computer.apply_gate(H)
def test_trotterization_with_controlled_U(self):
circ_vec = [build_circuit('Y_0 X_1'), build_circuit('X_0 Y_1')]
coef_vec = [-1.0719145972781818j, 1.0719145972781818j]
# the operator to be exponentiated
minus_iH = QubitOperator()
for i in range(len(circ_vec)):
minus_iH.add(coef_vec[i], circ_vec[i])
ancilla_idx = 2
# exponentiate the operator
Utrot, phase = trotterization.trotterize_w_cRz(minus_iH, ancilla_idx)
# Case 1: positive control
# initalize a quantum computer
qc = Computer(3)
# build HF state
qc.apply_gate(gate('X', 0, 0))
# put ancilla in |1> state
qc.apply_gate(gate('X', 2, 2))
# apply the troterized minus_iH
qc.apply_circuit(Utrot)
smart_print(qc)
coeffs = qc.get_coeff_vec()
assert coeffs[5] == approx(-0.5421829373021542, abs=1.0e-15)
assert coeffs[6] == approx(-0.8402604730072732, abs=1.0e-15)
# Case 2: negitive control
# initalize a quantum computer
qc = Computer(3)
# build HF state
qc.apply_gate(gate('X', 0, 0))
# apply the troterized minus_iH
qc.apply_circuit(Utrot)
smart_print(qc)
coeffs = qc.get_coeff_vec()
assert coeffs[1] == approx(1, abs=1.0e-15)