[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[2] Univ Louisville, Dept Elect & Comp Engn, Louisville, KY 40292 USA
[3] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan
[4] Tokyo Inst Technol, Dept Informat Proc, Yokohama, Kanagawa 2268502, Japan
[5] Tokyo Univ Sci, Dept Phys, Tokyo 1620825, Japan