Generation of squeezed vacuum on cesium D2 line down to kilohertz range<xref rid="cpb_26_12_124206_fn1" ref-type="fn">*</xref> <fn id="cpb_26_12_124206_fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11634008, 61227902, 11574187, and 11674203), the National Key Research and Development Program of China (Grant No. 2017YFA0304500), and the Fund of “1331 Project” Key Subjects Construction of Shanxi Province, China.</p> </fn>

Generation of squeezed vacuum on cesium D2 line down to kilohertz range* *

Project supported by the National Natural Science Foundation of China (Grant Nos. 11634008, 61227902, 11574187, and 11674203), the National Key Research and Development Program of China (Grant No. 2017YFA0304500), and the Fund of “1331 Project” Key Subjects Construction of Shanxi Province, China.

Tian Jian-Feng¹, Zuo Guan-Hua², Zhang Yu-Chi^{2, †}, Li Gang¹, Zhang Peng-Fei¹, Zhang Tian-Cai¹

(color online) Plots of squeezing at 35 kHz versus time, where (curve a) black line represents the normalized quantum noise power of the squeezed vacuum at the Cs D2 line when the LO phase is scanning, while (curve b) red line refers to the normalized SQL with RBW = 1 kHz and VBW = 300 Hz.