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 …

Decoherence is the tendency of a time-evolved reduced density matrix for a subsystem to
assume a form corresponding to a statistical ensemble of states rather than a coherent …

Quantum information theory has considerably helped in the understanding of quantum many-
body systems. The role of quantum correlations and in particular, bipartite entanglement …

We review the concepts of quantum entanglement and quantum discord and present the
entropic measures for these information correlations. We further provide examples …

We consider discrete-alphabet encoding schemes for coherent-state quantum key
distribution. The sender encodes the letters of a finite-size alphabet into coherent states …

We report a nuclear magnetic resonance experiment, which simulates the quantum
transverse Ising spin system in a triangular configuration, and further demonstrate that …

We propose an all-optical setup to produce a wide class of X states with an intense laser
beam using spin-orbit modes. In order to characterize such simulated states, we …

The reservoir memory effects can lead to information backflow and recurrence of the
previously lost quantum correlations. We establish connections between the direction of …

Nuclear magnetic resonance is arguably both the best available quantum technology for
implementing simple quantum computing experiments and the worst technology for building …

We experimentally emulate interaction induced blockade and local spin freezing in two and
three qubit NMR architecture. These phenomena are identical to the Rydberg blockade and …