[1
]State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua
University, Beijing 100084, People’s Republic of China
[2
]Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics,
Chinese Academy of Sciences, Suzhou 215123, People’s Republic of China
[3
]College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing
100029, People’s Republic of China
[4
]Institute of Applied Physics and Computational Mathematics, Beijing 100088, People’s
Republic of China
[5
]Frontier Science Center for Quantum Information, Beijing 100084, People’s Republic
of China
[6
]Beijing Academy of Quantum Information Sciences, Beijing 100193, People’s Republic
of China