1. Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139
2. Department of Electrical Engineering & Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139
3. Department of Physics, Harvard University, Cambridge, MA 02138
4. Max Planck Institute for the Structure and Dynamics of Matter, Hamburg 22761, Germany
5. Department of Physics and Astronomy and Center for Quantum Materials, George Mason University, Fairfax, VA 22030
6. Department of Physics and Astronomy, Clemson University, Clemson, SC 29631
7. Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
8. Max Planck Institute for Solid State Research, Stuttgart 70569, Germany
9. Department of Physics, Columbia University, New York, NY 10027
10. Center for Computational Quantum Physics, The Flatiron Institute, New York, NY 10010
11. Nano-Bio Spectroscopy Group, Departamento de Física de Materiales, Universidad del País Vasco, San Sebastían 20018, Spain