# Quantum discord and its allies: a review

## TL;DR

This review paper discusses quantum discord, its related concepts, and their applications across quantum communication, computation, many-body physics, and open quantum systems, highlighting recent advances and multiparty extensions.

## Contribution

It provides a comprehensive overview of quantum discord and related measures, connecting them to various quantum information and physics domains, including multiparty scenarios.

## Key findings

- Quantum discord links to quantum communication and computation.
- Extensions to multiparty quantum discord are explored.
- The review highlights recent developments in quantum discord applications.

## Abstract

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 beyond, including quantum communication, quantum computation, many-body physics, and open quantum dynamics. Quantum discord in the multiparty regime and its applications are also discussed.