def build_alternating_cnots_circuit(n_qubits, n_layers, params, skips=None):
if skips is None:
skips = []
c = Circuit(n_qubits)
cnot_count = 0
cnots_full = 0
for i in range(n_layers):
if i % 2:
for q in range(n_qubits // 2):
if cnots_full not in skips:
c.add_operation(OpType.U3, params[2 * cnot_count], [2 * q])
c.add_operation(OpType.U3, params[2 * cnot_count + 1],
[2 * q + 1])
c.CX(2 * q, 2 * q + 1)
cnot_count += 1
cnots_full += 1
else:
for q in range((n_qubits - 1) // 2):
if cnots_full not in skips:
c.add_operation(OpType.U3, params[2 * cnot_count],
[2 * q + 1])
c.add_operation(OpType.U3, params[2 * cnot_count + 1],
[2 * q + 2])
c.CX(2 * q + 1, 2 * q + 2)
cnot_count += 1
cnots_full += 1
for q in range(n_qubits):
c.add_operation(OpType.U3, params[-q], [q])
return c
def instructions_to_circuit(instructions):
c = Circuit(n_qubit)
for inst in instructions:
t = inst.op.get_type()
c.add_operation(t, inst.op.get_params(), inst.qubits)
return c
# circ = instructions_to_circuit(circ.get_commands()[:24])
# print(circ.n_gates)
# print(dag_to_circuit(tk_to_dagcircuit(circ)))
def add_params_to_template(template: Circuit, params: np.ndarray):
params = params.reshape((template.n_gates * 2 + template.n_qubits, 3))
c = Circuit(template.n_qubits)
for i in range(template.n_gates):
cnot_gate = template.get_commands()[i]
c.add_operation(OpType.U3, params[2 * i], [cnot_gate.qubits[0]])
c.add_operation(OpType.U3, params[2 * i + 1], [cnot_gate.qubits[1]])
c.CX(cnot_gate.qubits[0], cnot_gate.qubits[1])
for q in range(template.n_qubits):
c.add_operation(OpType.U3, params[template.n_gates * 2 + q], [q])
return c
def instructions_to_circuit(self, instructions):
c = Circuit(self.n_qubits, self.n_qubits)
for inst in instructions:
t = inst.op.get_type()
c.add_operation(t, inst.op.get_params(), inst.qubits)
return c