1. Department of Physics, The Chinese University of Hong Kong, Shatin N.T., Hong Kong, China
2. Department of Physics, Southern University of Science and Technology, Shenzhen, Guangdong, China
3. Department of Physics and the IAS Centre for Quantum Technologies, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
4. Shenzhen Research Institute, The Chinese University of Hong Kong, Shatin, Hong Kong, China