[1] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA
[2] Univ Paris Saclay, Inst Phys Theor, CEA CNRS, F-91190 Gif Sur Yvette, France
[3] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland
[4] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan
[5] Natl Inst Mat Sci, Res Ctr Funct Mat, Tsukuba, Ibaraki 3050044, Japan
[6] Univ York, Dept Phys, York Y010 5DD, N Yorkshire, England
[7] Univ York, York Ctr Quantum Technol, York Y010 5DD, N Yorkshire, England
[8] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA