| 共振和非共振情况下非简并双光子Tavis-Cummings模型中原子与原子之间的纠缠演化 |
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| 引用本文： | 张国锋,卜晶晶.共振和非共振情况下非简并双光子Tavis-Cummings模型中原子与原子之间的纠缠演化[J].物理学报,2010,59(3):1462-1467. |
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| 作者姓名： | 张国锋 卜晶晶 |
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| 作者单位： | 北京航空航天大学物理科学与核能工程学院物理系，北京 100191 |
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| 基金项目： | 国家自然科学基金（批准号:10604053和10874013）资助的课题. |
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| 摘 要： | 针对共振和非共振情况讨论了非简并双光子Tavis-Cummings(T-C)模型中原子与原子之间的纠缠演化,得到纠缠度的解析表达式.基于两类型不同的初态,详细分析了光场本征频率、原子跃迁频率以及原子与原子间偶极相互作用对纠缠的影响,并比较了共振和非共振情况下的纠缠演化行为.
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| 关 键 词： | T-C模型 共振 纠缠度 偶极相互作用 |
| 收稿时间： | 2009-06-13 |
Entanglement evolution between atoms in the non-degenerate two photons Tavis-Cummings model in resonance and non-resonance cases |
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| Zhang Guo-Feng,Bu Jing-Jing.Entanglement evolution between atoms in the non-degenerate two photons Tavis-Cummings model in resonance and non-resonance cases[J].Acta Physica Sinica,2010,59(3):1462-1467. |
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| Authors: | Zhang Guo-Feng Bu Jing-Jing |
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| Abstract: | The entanglement character between a two-level atom and a two-mode field as well as two-level atoms in the non-degenerate two photons Tavis-Cummings model in the resonance and non-resonance cases have been investigated, and the analytical expression about entanglement is obtained. Based on two kinds of initial states, the effects of field frequency, atomic frequency and dipole-dipole coupling between atoms on the entanglement are shown in detail. The cases of resonance and non-resonance are compared. |
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| Keywords: | T-C model resonance concurrence dipole-dipole coupling |
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