  It has been suggested that there may exist quantum correlations that go
beyond entanglement. The existence of such correlations can be revealed by
quantum discord, but not by the conventional measure of entanglement. We argue
that a state displays quantumness that can be of local and nonlocal origin. The
physical quantity such as the quantum discord probes not only the nonlocal
quantumness but also the local quantumness, such as the "local superposition".
This can be a reason why such measures are non-zero when there is no
entanglement. We consider a generalized version of the Werner state to
demonstrate the interplay of local quantumness, nonlocal quantumness, and
classical mixedness of a state.
