Electromagnetically induced transparency is a quantum interference (QI) effect in a coherent system, in which the similar but distinct effect of Autler–Townes splitting (ATS) without QI also happens concurrently. The Akaike information criterion (AIC) has been proven to be an efficient and objective method to discern them by evaluating their relative AIC weights for different Rabi frequencies of the coupling field. Here, we investigate in detail the influence of the dephasing effect on the AIC weights of QI and ATS, and present the transition among destructive QI, constructive QI, and ATS without QI by controlling the dephasing rates. By comparing the effects of different dephasing rates on the QI and ATS weights, we show that the field-phase-diffusion dephasing provides more feasibility than the atom-collision dephasing in control of QI and ATS. Therefore, precise and selective dephasing engineering can be realized by manipulating the linewidths and phase correlation of the fields. This indicates that various collision-related effects (e.g., collision-dephasing-induced coherences) can be experimentally studied using more controllable field-phase-diffusion dephasing instead of buffer-gas-controlling collision dephasing.

中文翻译：

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相移对相干系统中量子干扰的Akaike信息准则判别和Autler-Town分裂的影响

电磁感应的透明性是相干系统中的量子干扰（QI）效应，其中没有QI的Autler-Townes分裂（ATS）的相似但不同的效应也同时发生。Akaike信息标准（AIC）已被证明是通过评估耦合场不同Rabi频率的相对AIC权重来识别它们的有效且客观的方法。在这里，我们详细研究了移相效果对QI和ATS的AIC权重的影响，并通过控制移相速率介绍了破坏性QI，建设性QI和没有QI的ATS之间的过渡。通过比较不同的相移速率对QI和ATS权重的影响，我们表明，在QI和ATS的控制中，场相扩散相移比原子碰撞相移提供了更多的可行性。因此，可以通过控制场的线宽和相位相关性来实现精确而有选择性的移相工程。这表明可以使用更可控的场相位扩散相移而不是缓冲气体控制的碰撞相移来实验研究各种与碰撞有关的效应（例如，由相移引起的相干性）。