One of the best signatures of nonclassicality in a quantum system is the existence of
correlations that have no classical counterpart. Different methods for quantifying the …

We review concepts and methods associated with quantum discord and related topics. We
also describe their possible connections with other aspects of quantum information and …

Knowledge of the dynamical behavior of correlations with no classical counterpart, like
entanglement, nonlocal correlations and quantum discord, in open quantum systems is of …

It has recently been pointed out that the geometric quantum discord, as defined by the
Hilbert-Schmidt norm (2-norm), is not a good measure of quantum correlations, since it may …

We investigate the dynamics of non-classical correlations and quantum coherence in open
quantum systems by employing metrics like local quantum Fisher information, local quantum …

Geometric quantum discord is a well-defined measure of quantum correlation if Schatten
one-norm (trace norm) is adopted as a distance measure. Here, we analytically investigate …

We define and analyze measures of correlations for bipartite states based on trace distance.
For Bell diagonal states of two qubits, in addition to the known expression for quantum …

Finding the closest separable state to a given target state is a notoriously difficult task, even
more difficult than deciding whether a state is entangled or separable. To tackle this task, we …

We establish relations between geometric quantum discord and entanglement quantifiers
obtained by means of optimal witness operators. In particular, we prove a relation between …

We employ the concepts of local quantum uncertainty and geometric quantum discord
based on the trace norm to investigate the environmental effects on quantum correlations of …