Jinmian Li³, Tianjun Li^8,9, Shi-hang Liu¹, Jia-Shu Niu¹⁰, Zhihui Peng¹, Liang Sun², Zheng Sun³, Jia Wang², Puxian Wei¹¹, Lina Wu¹², Zhongchen Xiang², Qiaoli Yang¹¹, Chi Zhang², Wenxing Zhang¹³, Xin Zhang^14,15, Dongning Zheng², Ruifeng Zheng¹¹, and Jian-yong Zhou¹ (APEX Collaboration)

• ¹Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha 410081, China
• ²Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
• ³College of Physics, Sichuan University, Chengdu 610065, China
• ⁴Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
• ⁵Institute of Theoretical Physics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
• ⁶Beijing Academy of Quantum Information Sciences, Beijing 100193, China
• ⁷College of Mechanical and Electrical Engineering, Wuyi University, Nanping 354300, China
• ⁸CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
• ⁹School of Physical Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
• ¹⁰Institute of Theoretical Physics, Shanxi University, Taiyuan, 030006, China
• ¹¹College of Physics and Optoelectronic Engineering, Department of Physics, Jinan University, Guangzhou 510632, China
• ¹²School of Sciences, Xi’an Technological University, Xi’an 710021, P. R. China
• ¹³Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
• ¹⁴National Astronomical Observatories, Chinese Academy of Sciences, 20A, Datun Road, Chaoyang District, Beijing 100101, China
• ¹⁵School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China