1. Physical Science and Engineering Division King Abdullah University of Science and Technology Thuwal 23955‐6900 Saudi Arabia
2. The Center for Advanced Quantum Studies and Department of Physics Beijing Normal University Beijing 100875 China
3. School of Science Harbin Institute of Technology Shenzhen 518055 China
4. Aix‐Marseille Université CNRS CINaM Marseille 13288 France