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__all__ = ['qubit_states']
from qutip.tensor import tensor
[docs]def qubit_states(N=1, states=[0]):
"""
Function to define initial state of the qubits.
Parameters
----------
N: Integer
Number of qubits in the register.
states: List
Initial state of each qubit.
Returns
----------
qstates: Qobj
List of qubits.
"""
state_list = []
for i in range(N):
if N > len(states) and i >= len(states):
state_list.append(0)
else:
state_list.append(states[i])
return tensor(alpha * basis(2, 0) + sqrt(1 - alpha**2) * basis(2, 1)
for alpha in state_list)