Probability distribution of qubits' classical value

[LuigiGiuffrida98]

Why in the simulator there isn't an equivalent to get_probabilities() (like in IBM backend)? Wouldn't it be great to have something like this?

[Takishima]

While there is indeed no functions that can give you the data you want immediately, the simulator does provide a get_probability() method to access the probability of a particular bit string.

If you want to have the complete set of probabilities, you can do something like this:

probabilities = {}
n_qubits = len(qureg)
for i in range(n_qubits):
    bit_string = '{0:b}'.format(i).zfill(n_qubits)
    probabilities[bit_string] = eng.backend.get_probability(bit_string, qureg)

[LuigiGiuffrida98]

Thanks a lot for your disponibility! 😊