pygsti.tools.rhovec_penalty¶
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pygsti.tools.
rhovec_penalty
(rhoVec)¶ - Penalty assigned to a state preparation (rho) vector rhoVec. State
- preparation density matrices must be positive semidefinite and trace == 1. A positive return value indicates an these criteria are not met and the rho-vector is invalid.
Parameters: rhoVec (numpy array) – rho vector array of shape (N,1) for some N. Returns: Return type: float