def add_fresh_qubit(self):
"""
Add a new qubit initialized in the \|0\> state.
"""
# Check if we are still allowed to add qubits
if self.activeQubits >= self.maxQubits:
raise noQubitError("No more qubits available in register.")
num = self.activeQubits
self.activeQubits += 1
return num
def add_fresh_qubit(self):
"""
Add a new qubit initialized in the \|0\> state.
"""
# Check if we are still allowed to add qubits
if self.activeQubits >= self.maxQubits:
raise noQubitError("No more qubits available in register.")
# Prepare a clean qubit state in |0>
qubit = self.eng.allocate_qubit()
self.qubitReg.append(qubit)
num = self.activeQubits
self.activeQubits += 1
return num
def add_qubit(self, newQubit):
"""
Add new qubit in the state described by the density matrix newQubit
"""
# Check if we are still allowed to add qubits
if self.activeQubits >= self.maxQubits:
raise noQubitError("No more qubits available in register.")
# Append to the existing state at the end
if self.activeQubits > 0:
self.qubitReg = qp.tensor(self.qubitReg, newQubit)
else:
self.qubitReg = newQubit
# Index number of that qubit
num = self.activeQubits
# Increment the number of qubits
self.activeQubits = self.activeQubits + 1
return num