Quantum Correlations in Cavity QED Networks

TL;DR

This paper reviews the dynamical behavior of quantum correlations in cavity QED networks, focusing on their generation, propagation, and phenomena like sudden transitions and freezing, considering effects of dissipation and temperature.

Contribution

It provides a comprehensive review of quantum correlation dynamics in cavity QED networks, including new insights into geometrical measures and thermal effects.

Findings

Double transitions in Bures geometrical discord observed.

Thermal effects influence the occurrence of sudden transitions.

Dissipation impacts quantum correlation dynamics.

Abstract

We present a Review of the dynamical features such as generation, propagation, distribution, sudden transition and freezing of the various quantum correlation measures, as Concurrence, Entanglement of Formation, Quantum Discord, as well their geometrical measure counterparts within the models of Cavity Quantum Electrodynamics Networks. Dissipation and thermal effects are discussed both in the generation of quantum correlations as well as their effect on the sudden changes and freezing of the classical and quantum correlations in a cavity quantum electrodynamical network. For certain initial conditions, double transitions in the Bures geometrical discord are found. One of these transitions tends to disappear at a critical temperature