The dynamical behavior of open quantum systems plays a key role in many applications of
quantum mechanics, examples ranging from fundamental problems, such as the …

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 …

The field of classical stochastic processes forms a major branch of mathematics. Stochastic
processes are, of course, also very well studied in biology, chemistry, ecology, geology …

We derive a necessary and sufficient condition for a quantum process to be Markovian
which coincides with the classical one in the relevant limit. Our condition unifies all …

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 …

The basic features of the dynamics of open quantum systems, such as the dissipation of
energy, the decay of coherences, the relaxation to an equilibrium or non-equilibrium …

Machine learning methods have proved to be useful for the recognition of patterns in
statistical data. The measurement outcomes are intrinsically random in quantum physics …

Quantum coherence is the most distinguished feature of quantum mechanics. It lies at the
heart of the quantum-information technologies as the fundamental resource and is also …

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 …

We study the ultimate limits to the decoherence rate associated with dephasing processes.
Fluctuating chaotic quantum systems are shown to exhibit extreme decoherence, with a rate …