About the Authors

Niklas Hübel

Affiliation Department of Theoretical Physics, Technische Universität Berlin, Berlin, Germany

Markus A. Dahlem

markus.dahlem@gmail.com

Affiliation Department of Physics, Humboldt Universität zu Berlin, Berlin, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NH MAD. Performed the experiments: NH MAD. Analyzed the data: NH MAD. Contributed reagents/materials/analysis tools: NH MAD. Wrote the paper: NH MAD.