qiskit/quantum_info/operators/channel/quantum_channel.py
def _is_cp_helper(self, choi, atol, rtol):
        """Test if a channel is completely-positive (CP)"""
        if atol is None:
            atol = self._atol
        if rtol is None:
            rtol = self._rtol
        return is_positive_semidefinite_matrix(choi, rtol=rtol, atol=atol)
def _is_cp_helper(self, choi, atol, rtol):
        """Test if a channel is completely-positive (CP)"""
        if atol is None:
            atol = self._atol
        if rtol is None:
            rtol = self._rtol
        return is_positive_semidefinite_matrix(choi, rtol=rtol, atol=atol)
Test if a channel is completely-positive (CP)