pygsti.sum_of_negative_choi_evals

pygsti.sum_of_negative_choi_evals(gateset)

Compute the amount of non-CP-ness of a gateset by summing the negative eigenvalues of the Choi matrix for each gate in gateset.

Parameters:gateset (GateSet) – The gate set to act on.
Returns:the sum of negative eigenvalues of the Choi matrix for each gate.
Return type:float