Atom–light interface is at the core of quantum metrology and quantum information science. Associated noises during interaction processes are always inevitable and adverse. In this paper, we perform the stimulated Raman scattering (SRS) in a hot Rb87 vapor cell and demonstrate the reduction of related noises originated from mode mismatch via optimizing the temporal waveform of the input seed. By using the seed with the optimized mode, the intensity fluctuation of the signal field generated in atom–light interaction is decreased by 4.3 dB. Furthermore, the fluctuation of the intensity difference between the signal and atomic spin wave is reduced by 3.1 dB. Such a temporal mode-cleaning method can be applied to improve the precision of atom interferometry using SRS and should be helpful for quantum information processing based on an atom–light correlated system.

中文翻译：

---

通过优化时间波形减少原子-光相互作用中的模式失配噪声

原子光界面是量子计量学和量子信息科学的核心。交互过程中的相关噪音总是不可避免的和不利的。在本文中，我们在热 Rb87 蒸气室中执行受激拉曼散射 (SRS)，并通过优化输入种子的时间波形来证明减少源自模式失配的相关噪声。通过使用优化模式的种子，原子-光相互作用产生的信号场的强度波动降低了4.3 dB。此外，信号与原子自旋波之间强度差的波动减少了3.1 dB。