1. Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, and Anhui Center for Applied Mathematics, University of Science and Technology of China, Hefei, Anhui 230026, China
2. Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
3. Department of Mathematics, University of California, Berkeley, California 94720, United States