AI 中文总结
该研究针对脉冲与连续波光量子点腔量子电动力学的中间 regime，开发量子主方程模型揭示腔增强激发与 Purcell 增强发射的相互作用，确定偏振分裂腔优化单光子纯度与发射概率的方式。
AI 中文摘要
谐振腔-量子系统相互作用在脉冲相干和连续波稳态极限下已被充分理解，但中间 regime 却研究甚少。我们探究中间 regime，其中脉冲持续时间、耦合、退相干与衰减发生在可比时间尺度，脉冲带宽匹配腔分裂与失谐。我们揭示腔增强激发与 Purcell 增强发射的相互作用会产生扭曲的 chevron 图案。我们开发量子主方程模型，该模型能高效处理光子数空间中激发光的相干态并复现实验数据。基于这些结果，我们确定偏振分裂腔如何优化单光子纯度与发射概率。
英文摘要
Resonant cavity-quantum system interactions are well understood in the pulsed coherent and continuous-wave steady-state limits, but not much in between. We investigate the intermediate regime, where pulse duration, coupling, decoherences, and decays occur on comparable timescales, and pulse bandwidth matches cavity splitting and detunings. We reveal an interplay of cavity-enhanced excitation and Purcell-enhanced emission leading to warped chevron patterns. We develop a quantum master-equation model that efficiently treats the excitation-light coherent states in photon number space and reproduces the experimental data. Using these results we identify how polarization-split cavities can optimize single-photon purity and emission probability.
