Classical Vs Quantum correlations in composite systems

TL;DR

This collection of articles reviews recent advances in understanding and quantifying quantum correlations, including foundational issues, quantum resources, spin systems, and dynamics in open systems and communication.

Contribution

Provides comprehensive reviews and original research on quantum correlations, emphasizing recent progress and diverse applications in quantum information science.

Findings

Analysis of quantum resources like entanglement and discord

Application of foundational concepts to spin systems

Study of quantum discord dynamics in open systems

Abstract

Here we provide the contributions' abstracts published in a volume we edited as a special issue in International Journal of Modern Physics B. The volume deals with the recent progress in quantifying quantum correlations beyond the generic notion of 'correlations in a quantum system'. The main goal of the special issue is to provide authoritative reviews on selected topics discussed in the field in the last few years. Nevertheless many articles contain significant original research. The opening section of the issue is dedicated to foundational aspects of quantum mechanics. The second section deals with diverse quantum information insights into the analysis of quantum resources (like entanglement and quantum discord). Many of the concepts presented in the first part of the issue are applied to spin systems in the third section. The last section of the issue is focused on the dynamics of quantum discord in open systems and in quantum communication protocols.