def multiplexer_cx_gate_circuits_nondeterministic(final_measure=True):
"""Multiplexer CX-like gate test circuits with non-deterministic counts."""
circuits = []
qr = QuantumRegister(2)
if final_measure:
cr = ClassicalRegister(2)
regs = (qr, cr)
else:
regs = (qr, )
# cx gate only has one control qubit
num_control_qubits = 1
# CX01.(I^H), Bell state
circuit = QuantumCircuit(*regs)
circuit.h(qr[0])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[0], qr[1]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CX10.(H^I), Bell state
circuit = QuantumCircuit(*regs)
circuit.h(qr[1])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[1], qr[0]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
return circuits
def multiplexer_ccx_gate_circuits_nondeterministic(final_measure=True):
"""mukltiplexer CCX-like gate test circuits with non-deterministic counts."""
circuits = []
qr = QuantumRegister(3)
if final_measure:
cr = ClassicalRegister(3)
regs = (qr, cr)
else:
regs = (qr, )
# because ccx has two control qubits and one target
num_control_qubits = 2
# (I^X^I).CCX(0,1,2).(I^X^H) -> |000> + |101>
circuit = QuantumCircuit(*regs)
circuit.h(qr[0])
circuit.barrier(qr)
circuit.x(qr[1])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits),
[qr[0], qr[1], qr[2]])
circuit.barrier(qr)
circuit.x(qr[1])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# (X^I^I).CCX(2,1,0).(X^H^I) -> |000> + |011>
circuit = QuantumCircuit(*regs)
circuit.h(qr[1])
circuit.barrier(qr)
circuit.x(qr[2])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits),
[qr[2], qr[1], qr[0]])
circuit.barrier(qr)
circuit.x(qr[2])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
return circuits
def multiplexer_cx_gate_circuits_deterministic(final_measure=True):
"""multiplexer-gate simulating cx gate, test circuits with deterministic counts."""
circuits = []
qr = QuantumRegister(2)
if final_measure:
cr = ClassicalRegister(2)
regs = (qr, cr)
else:
regs = (qr, )
num_control_qubits = 1
# CX01, |00> state
circuit = QuantumCircuit(*regs)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[0], qr[1]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CX10, |00> state
circuit = QuantumCircuit(*regs)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[1], qr[0]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CX01.(X^I), |10> state
circuit = QuantumCircuit(*regs)
circuit.x(qr[1])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[0], qr[1]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CX10.(I^X), |01> state
circuit = QuantumCircuit(*regs)
circuit.x(qr[0])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[1], qr[0]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CX01.(I^X), |11> state
circuit = QuantumCircuit(*regs)
circuit.x(qr[0])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[0], qr[1]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CX10.(X^I), |11> state
circuit = QuantumCircuit(*regs)
circuit.x(qr[1])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[1], qr[0]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CX01.(X^X), |01> state
circuit = QuantumCircuit(*regs)
circuit.x(qr)
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[0], qr[1]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CX10.(X^X), |10> state
circuit = QuantumCircuit(*regs)
circuit.x(qr)
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits), [qr[1], qr[0]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
return circuits
def multiplexer_ccx_gate_circuits_deterministic(final_measure=True):
"""multiplexer-gate simulating ccx gate, test circuits with deterministic counts."""
circuits = []
qr = QuantumRegister(3)
if final_measure:
cr = ClassicalRegister(3)
regs = (qr, cr)
else:
regs = (qr, )
# because ccx has two control qubits and one target
num_control_qubits = 2
# CCX(0,1,2)
circuit = QuantumCircuit(*regs)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits),
[qr[2], qr[0], qr[1]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# (I^X^X).CCX(0,1,2).(I^X^X) -> |100>
circuit = QuantumCircuit(*regs)
circuit.x(qr[0])
circuit.barrier(qr)
circuit.x(qr[1])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits),
[qr[2], qr[0], qr[1]])
circuit.barrier(qr)
circuit.x(qr[0])
circuit.barrier(qr)
circuit.x(qr[1])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# CCX(2,1,0)
circuit = QuantumCircuit(*regs)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits),
[qr[0], qr[2], qr[1]])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
# (X^X^I).CCX(2,1,0).(X^X^I) -> |001>
circuit = QuantumCircuit(*regs)
circuit.x(qr[1])
circuit.barrier(qr)
circuit.x(qr[2])
circuit.barrier(qr)
circuit.append(multiplexer_multi_controlled_x(num_control_qubits),
[qr[0], qr[2], qr[1]])
circuit.barrier(qr)
circuit.x(qr[1])
circuit.barrier(qr)
circuit.x(qr[2])
if final_measure:
circuit.barrier(qr)
circuit.measure(qr, cr)
circuits.append(circuit)
return circuits