标题： 失谐和去相位对激光校正的亚自然线宽单光子源的影响 显示英文标题

标题： Impact of detuning and dephasing on a laser-corrected subnatural-linewidth single-photon source

摘要： 共振驱动的双能级系统的弹性散射峰被认为可以产生窄线宽的反聚束光子。 尽管在一方面对光谱宽度的独立测量和另一方面对反聚束的独立测量似乎都表明了这一点，但联合测量显示，在直接发射中只能实现这两个特性中的一个。 我们讨论了一种方案，该方案将发射与激光干涉，以同时产生亚自然线宽的单光子。 特别是，我们考虑了去相位效应以及驱动激光和/或探测器与发射体之间的失谐效应。 我们发现，即使在存在去相位的情况下，与标准方案相比，我们的方案也有显著改进。 显示英文摘要

摘要： The elastic scattering peak of a resonantly driven two-level system has been argued to provide narrow-linewidth antibunched photons. Although independent measurements of spectral width on the one hand and antibunching on the other hand do seem to show that this is the case, a joint measurement reveals that only one or the other of these attributes can be realised in the direct emission. We discuss a scheme which interferes the emission with a laser to produce simultaneously single photons of subnatural linewidth. In particular, we consider the effect of dephasing and of the detuning between the driving laser and/or the detector with the emitter. We find that also in presence of dephasing, our scheme brings considerable improvement as compared to the standard scheme.