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<p>An exact solution of the problem of two 2‑level atoms interacting with two mode field is obtained. For a&#xa0;chosen initial states, the effects of the mean photon number difference on the purity loss of the subsystem are considered. The atom-field entanglement is investigated on the basis of the reduced linear atomic entropy. For this system, we investigate the negativity as a&#xa0;measure of entanglement.</p>

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Entanglement and purity loss for the system of two 2-level atoms interacting with two-mode field

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • M. Hashem

摘要

An exact solution of the problem of two 2‑level atoms interacting with two mode field is obtained. For a chosen initial states, the effects of the mean photon number difference on the purity loss of the subsystem are considered. The atom-field entanglement is investigated on the basis of the reduced linear atomic entropy. For this system, we investigate the negativity as a measure of entanglement.