About the Authors

Katja Ostermeir

Affiliation Physik-Department T38, Technische Universität München, Garching, Germany

Martin Zacharias

martin.zacharias@ph.tum.de

Affiliation Physik-Department T38, Technische Universität München, Garching, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: MZ. Data curation: KO. Formal analysis: KO MZ. Funding acquisition: MZ. Investigation: KO MZ. Methodology: KO MZ. Project administration: MZ. Resources: MZ. Software: KO. Supervision: MZ. Validation: KO MZ. Visualization: KO MZ. Writing – original draft: KO MZ. Writing – review & editing: KO MZ.