[1] Univ Sci & Technol China, Shanghai Branch, Natl Lab Phys Sci Microscale, Shanghai 201315, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Shanghai 201315, Peoples R China
[3] Univ Sci & Technol China, Shanghai Branch, Ctr Quantum Informat & Quantum Phys, CAS Ctr Excellence & Synerget Innovat, Shanghai 201315, Peoples R China
[4] Shanghai Jiao Tong Univ, Sch Math Sci, Shanghai 200240, Peoples R China
[5] Wuhan Inst Technol, Lab Opt Informat Technol, Wuhan 430205, Hubei, Peoples R China
[6] Capital Normal Univ, Sch Math Sci, Beijing 100048, Peoples R China
[7] Max Planck Inst Math Sci, D-04103 Leipzig, Germany