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 …

We analyze under which dynamical conditions the coherence of an open quantum system is
totally unaffected by noise. For a single qubit, specific measures of coherence are found to …

The ability to live in coherent superpositions is a signature trait of quantum systems and
constitutes an irreplaceable resource for quantum-enhanced technologies. However …

Quantum correlations in a composite system can be measured by resorting to a geometric
approach, according to which the distance from the state of the system to a suitable set of …

The notion of distance defined on the set of states of a composite quantum system can be
used to quantify total, quantum and classical correlations in a unifying way. We provide new …

Quantum many-body systems have been extensively studied from the perspective of
quantum technology, and conversely, critical phenomena in such systems have been …

Analytic expressions of the generalized discord for three qubits under local noisy channels -
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We derive an analytic solution for the ensemble-averaged collective dephasing dynamics of
N noninteracting atoms in a fluctuating homogeneous external field. The obtained Kraus …

Correlations in the open quantum systems manifest a rich phenomenology under the
influence of various physical sources of noise. We theoretically study the dynamics of …