论文标题
单个激发空间中两个Jaynes-Cummings原子的纠缠
Entanglement of Two Jaynes-Cummings Atoms In Single Excitation Space
论文作者
论文摘要
我们研究了两个原子的纠缠动态，并在单个兴奋空间中与自己的Jaynes-cummings腔相结合。在这里，我们使用同意来测量原子纠缠。局部钟表作为初始状态。我们的分析表明，纠缠动态存在崩溃和恢复。纠缠动态背后的物理机制是原子和光场之间的定期信息和能量交换。对于最初的部分铃铛状态，只有当两个原子腔耦合强度的比率是一个理性的数字时，才能找到原子纠缠的进化周期。以及两种初始部分钟状病例之间是否存在时间翻译取决于耦合强度比的奇数数量。
We study the entanglement dynamics of two atoms coupled to their own Jaynes-Cummings cavities in single-excitation space. Here we use the concurrence to measure the atomic entanglement. And the partial Bell states as initial states are considered. Our analysis suggests that there exist collapses and recovers in the entanglement dynamics. The physical mechanism behind the entanglement dynamics is the periodical information and energy exchange between atoms and light fields. For the initial Partial Bell states, only if the ratio of two atom-cavity coupling strengths is a rational number, the evolutionary periodicity of the atomic entanglement can be found. And whether there is time translation between two kinds of initial partial Bell state cases depends on the odd-even number of the coupling strength ratio.
