[1] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Int Joint Lab Quantum Sensing & Quantum Metrol, Wuhan 430074, Hubei, Peoples R China
[3] Univ Ulm, Inst Theoret Phys, Albert Einstein Allee 11, D-89081 Ulm, Germany
[4] Univ Ulm, IQST, Albert Einstein Allee 11, D-89081 Ulm, Germany