pygsti.tools.mcfetools.polarization_to_success_probability

polarization_to_success_probability(p, n)

Utility function for MCFE VBDataFrame creation.

Maps a polarization p for an n-qubit circuit to the success probability s, defined by s = p * (1 - 1/2**n) + 1/2**n. For large n, the difference between p and s is negligible and the calculation of 2**n is prohibitive, so we impose a cutoff above which we assert s = p.

Parameters:

• p (float) – circuit polarization

• n (int) – number of qubits in the circuit.

Returns:

circuit success probability.

Return type:

float