1. Center for Quantum Information Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
2. Department of Electronics and Information Convergence Engineering Kyung Hee University Yongin 17104 Republic of Korea
3. Division of Nano and Information Technology KIST School Korea University of Science and Technology Seoul 02792 Republic of Korea
4. Department of Physics Yonsei University Seoul 03722 Republic of Korea
5. Emerging Science and Technology Directorate Agency for Defense Development Daejeon 34186 Republic of Korea