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 …

Quantum information theory is built upon the realisation that quantum resources like
coherence and entanglement can be exploited for novel or enhanced ways of transmitting …

Criteria of measure quantifying quantum coherence, a unique property of quantum system,
are proposed recently. In this paper, we first give an uncertainty-like expression relating the …

Quantum discord is the minimal bipartite resource which is needed for a secure quantum
key distribution, being a cryptographic primitive equivalent to non-orthogonality. Its role …

We show that the phenomenon of frozen discord, exhibited by specific classes of two-qubit
states under local nondissipative decoherent evolutions, is a common feature of all known …

Quantum reservoir networks combine the intelligence of neural networks with the potential of
quantum computing in a single platform. This platform operates on the architecture of …

Using Venn diagrams, we classify the different types of two-mode Gaussian continuous
variable quantum correlation including directional entanglement and Einstein-Podolsky …

As two valuable quantum resources, Einstein-Podolsky-Rosen entanglement and steering
play important roles in quantum-enhanced communication protocols. Distributing such …

Some physical objects are hardly accessible to direct experimentation. It is then desirable to
infer their properties based solely on the interactions they have with systems over which we …

A mixed state shared by two parties, Alice and Bob, is called classically correlated if it can be
written as reported by Oppenheim (Physical Review Letters 89: 180402, 2002) ρ _ cc= ∑ _ i …