论文标题
使用单光子调制的10-赫兹量子光源在D2线上生成
10-Hertz quantum light source generation on the cesium D2 line using single photon modulation
论文作者
论文摘要
量子光源的生成是一种有前途的技术，可以克服精度测量中的标准量子极限。在这里，我们证明了第一次在Cesium D2线上共鸣的实验性Quadrature挤压，首次降至10 Hz。音频频带中的最大挤压为5.57 dB。此外，我们已经提出了一个单光子调制锁定，以控制挤压角度，同时有效地抑制了激光噪声对低频挤压的影响。整个系统稳定运行数小时。生成的低频量子光源可以应用于音频频带乃至下方的量子计量学，光结合相互作用研究和量子记忆。
Generation of quantum light source is a promising technique to overcome the standard quantum limit in precision measurement. Here, we demonstrate an experimental generation of quadrature squeezing resonating on the cesium D2 line down to 10 Hz for the first time. The maximum squeezing in audio frequency band is 5.57 dB. Moreover, we have presented a single-photon modulation locking to control the squeezing angle, while effectively suppressing the influence of laser noise on low-frequency squeezing. The whole system operates steadily for hours. The generated low-frequency quantum light source can be applied in quantum metrology,light-matter interaction investigation and quantum memory in the audio frequency band and even below.
