The influence of dipole-dipole interaction on entanglement in nondegenerate two-photon Tavis-Cummings model with atomic coherence

TL;DR

This paper investigates how dipole-dipole interactions and atomic coherence influence entanglement between two atoms in a two-photon Tavis-Cummings model, highlighting the role of initial states and thermal photons.

Contribution

It introduces a detailed analysis of entanglement dynamics considering atomic coherence and dipole interactions in a nondegenerate two-photon system.

Findings

Entanglement depends on initial atomic states.

Atomic coherence and dipole interaction can significantly enhance entanglement.

Thermal photons with high mean values promote entanglement growth.

Abstract

The entanglement of two dipole-coupled atoms with nondegenerate two-photon transitions interacting with two-mode field in lossless cavity has been investigated. It shows that the entanglement is dependent on the initial atomic states. The possibility of considerable growth of atomic entanglement due atomic coherence and dipole-dipole interaction is shown in the case of great mean values of thermal photons.