Institute for Quantum Control and Quantum Information and School of Physics and Materials Engineering Hefei Normal University Hefei 230601 China;
Institute for Quantum Control and Quantum Information and School of Physics and Materials Engineering Hefei Normal University Hefei 230601 China;
School of Physics and Material Science Anhui University Hefei 230601 China;
Institute for Quantum Control and Quantum Information and School of Physics and Materials Engineering Hefei Normal University Hefei 230601 China;