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 …

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 …

Quantum coherence is an essential ingredient in quantum information processing and plays
a central role in emergent fields such as nanoscale thermodynamics and quantum biology …

Quantum mechanics exhibits a wide range of nonclassical features, of which entanglement
in multipartite systems takes a central place. In several specific settings, it is well known that …

Quantum entanglement and quantum nonlocality are known to exhibit monogamy; that is,
they obey strong constraints on how they can be distributed among multipartite systems …

We analyze the general nonclassicality of correlations of a composite quantum system as
measured by the negativity of quantumness. The latter corresponds to the minimum …

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 …

Correlations are a very important tool in the study of multipartite systems, for both classical
and quantum ones. The discussion about the quantum nature of correlations permeates …

We show that two qubits, initially in a fully classical state, can develop significant quantum
correlations as measured by the quantum discord (QD) under the action of a local …

We propose a characterization and a quantification of the general quantum correlation
which is exhibited even by a separable (unentangled) mixed bipartite state in terms of the …