1. Center for Axion and Precision Physics Research, IBS, Daejeon 34051, Republic of Korea
2. Department of Physics, KAIST, Daejeon 34141, Republic of Korea
3. RIKEN Center for Quantum Computing (RQC), Wako, Saitama 351-0198, Japan
4. Department of Applied Physics, Graduate School of Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan