Dynamics of impurity, local and non-local information for two non identical qubits

TL;DR

This paper investigates how impurity affects the dynamics of local and non-local information in two non-identical qubits interacting with a cavity, revealing information transfer mechanisms under various initial conditions.

Contribution

It introduces a detailed analysis of impurity effects on information dynamics in a two-qubit cavity system, considering different initial states and coupling ratios.

Findings

Local information transfers to non-local information at maximum impurity.

Dynamics depend on mean photon number and coupling ratio.

Initial states influence the entanglement and information transfer.

Abstract

From the separability point of view the problem of two atoms interact with a single cavity mode is investigated. The density matrix is calculated and used to discuss the entanglement and to examine the dynamics of the local and non-local information. Our examination concentrated on the variation in the mean photon number and the ratio of the coupling parameters. Furthermore, we have also assumed that the atomic system is initially in the ground states as well as in the intermediate states. It has been shown that the local information is transferred to non-local information when the impurity of one qubit or both is maximum.