National Laboratory of Solid State Microstructures and School of Physics;
Collaborative Innovation Center of Advanced Microstructures;
Nanjing University;
Nanjing;
Jiangsu 210093;
China;
Center for Integrated Quantum Information Technologies(IQIT);
School of Physics and Astronomy and State Key Laboratory of Advanced Optical Communication Systems and Networks;
Shanghai Jiao Tong University;
Shanghai 200240;
China;
CAS Center for Excellence and Synergetic InnovationCenter in Quantum Information and Quantum Physics;
University of Science and Technology of China;
Hefei 230026;
China;