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 …

A few decades ago, quantum optics stood out as a new domain of physics by exhibiting
states of light with no classical equivalent. The first investigations concerned single photons …

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 investigate the role of quantum coherence depletion (QCD) in the Grover search
algorithm (GA) by using several typical measures of quantum coherence and quantum …

We demonstrate that the Rényi-2 entropy provides a natural measure of information for any
multimode Gaussian state of quantum harmonic systems, operationally linked to the phase …

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 …

Quantum coherence, incompatibility, and quantum correlations are fundamental features of
quantum physics. A unified view of those features is crucial for revealing quantitatively their …

With the aid of a quantum memory, the uncertainty about the measurement outcomes of two
incompatible observables of a quantum system can be reduced. We investigate this …

In contrast with entanglement, as measured by concurrence, in general, quantum discord
does not possess the property of monogamy; that is, there is no tradeoff between the …

A generalization of quantum discord to multipartite systems is proposed. A key feature of our
formulation is its consistency with the conventional definition of discord in bipartite systems …