No-cloning theorem is fundamental for quantum mechanics and for quantum information
science that states an unknown quantum state cannot be cloned perfectly. However, we can …

It is shown that the dissonance, a quantum correlation which is equal to quantum discord for
separable state, is required for assisted optimal state discrimination. We find that only one …

Abstract Bell nonlocality and Einstein-Podolsky-Rosen (EPR) steering are very important
quantum correlations in composite quantum systems. Bell nonlocality of a bipartite state is …

The aim of this paper is to distinguish classical correlations from quantum ones. First, a new
characterization of a classical correlated (CC) state is established. Corresponding results for …

Since masking of quantum information was introduced by Modi et al. in Modi K. et al., Phys.
Rev. Lett., 120 (2018) 230501, many discussions on this topic have been published. In this …

Quantum correlations are more general than entanglement. A problem on how to
characterize and quantify quantum correlations has attracted substantial attention. Quantum …

Importance of quantum entanglement has been demonstrated in various applications.
Usually, separability of a bipartite state is defined by its algebraic structure, ie a convex …

In a bipartite quantum system, quantum states are classified as classically correlated (CC)
and quantum correlated (QC) states, the later are important resources of quantum …

Quantum coherence is one of the most fundamental and striking features in quantum
physics. Considered the standard coherence (SC), the partial coherence (PC) and the block …

The aim of this paper is to discuss local quantum channels that preserve classical
correlations. First, we give two equivalent characterizations of classical correlated states …