Lu Bo, Han Cheng-Yin, Zhuang Min, Ke Yong-Guan, Huang Jia-Hao, Lee Chao-Hong. Non-Gaussian entangled states and quantum metrology with ultracold atomic ensembleJ. Acta Physica Sinica, 2019, 68(4): 040306. DOI: 10.7498/aps.68.20190147