1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
2. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
3. QuTech, Delft University of Technology, 2600 GA Delft, The Netherlands
4. Department of Electrical and Computer Engineering, Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, United States
5. Institut für Festkörpertheorie, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
6. Institut für Theoretische Physik, Universität Bremen, P.O. Box 330 440, 28334 Bremen, Germany
7. Bremen Center for Computational Materials Science, University of Bremen, 28359 Bremen, Germany
8. Department of Physics, City College of New York, New York, New York 10031, United States
9. College of Letters and Science, UCLA, Los Angeles, California 90095 United States
10. Center for Visualizing Catalytic Processes (VISION), Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
11. MIT.nano, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
12. Department of Physics, The Graduate Center, City University of New York, New York, New York 10016, United States
13. Photonics Initiative, CUNY Advanced Science Research Center, New York, New York 10031, United States
14. Physics Program, Graduate Center, City University of New York, New York, New York 10026, United States
15. Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic
16. Institute of Physics and Center for Nanotechnology, University of Münster, 48149 Münster, Germany