  In this paper, we argue that quantum coherence in a bipartite system can be
contained either locally or in the correlations between the subsystems. The
portion of quantum coherence contained within correlations can be viewed as a
kind quantum correlation which we call correlated coherence. We demonstrate
that the framework provided by correlated coherence allows us retrieve the same
concepts of quantum correlations as defined by the asymmetric and symmetrized
versions of quantum discord as well as quantum entanglement, thus providing a
unified view of these correlations. We also prove that correlated coherence can
be formulated as an entanglement monotone, thus demonstrating that entanglement
may be viewed as a specialized form of coherence.
