Entanglement of two atoms interacting with a dissipative coherent cavity field without rotating wave approximation

• 来源期刊: 中国物理B（英文版）
• 关键词: atomic entanglement Tavis-Cummings model rotating wave approximation character-istic function
• 年，卷（期）: 2010,（11）
• 页码范围: 60-65
• 页数: 6页
• 语种: 英文

摘要

Considering two identical two-level atoms interacting with a single-model dissipative coherent cavity field without rotating wave approximation, we explore the entanglement dynamics of the two atoms prepared in different states using concurrence. Interestingly, our results show that the entanglement between the two atoms that initially disentangled will come up to a large constant rapidly, and then keeps steady in the following time or always has its maximum when prepared in some special Bell states. The model considered in this study is a good candidate for quantum information processing especially for quantum computation as steady high-degree atomic entanglement resource obtained in dissipative cavity.