About the Authors
- Michael Welter
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Affiliation Theoretical Physics, Saarland University, Saarbrücken, Germany
- Heiko Rieger
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* E-mail: h.rieger@mx.uni-saarland.de
Affiliation Theoretical Physics, Saarland University, Saarbrücken, Germany
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: MW HR. Performed the experiments: MW. Analyzed the data: MW. Wrote the paper: MW HR.