def bloch_vector_of(self, qubit: 'cirq.Qid') -> np.ndarray: """Returns the bloch vector of a qubit in the state. Calculates the bloch vector of the given qubit in the state given by self.state_vector(), given that self.state_vector() follows the standard Kronecker convention of numpy.kron. Args: qubit: qubit who's bloch vector we want to find. Returns: A length 3 numpy array representing the qubit's bloch vector. Raises: ValueError: if the size of the state represents more than 25 qubits. IndexError: if index is out of range for the number of qubits corresponding to the state. """ return qis.bloch_vector_from_state_vector(self.state_vector(), self.qubit_map[qubit], qid_shape=self._qid_shape)
def bloch_vector_from_state_vector(*args, **kwargs): return qis.bloch_vector_from_state_vector(*args, **kwargs)