1. Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology, 1088 Xueyuan Avenue, Shenzhen 518055, China
2. Department of Physics, The Hong Kong University of Science and Technology, Hong Kong 999077, China
3. Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore
4. Shenzhen Key Laboratory of Quantum Science and Engineering, 1088 Xueyuan Avenue, Shenzhen 518055, China