About the Authors

Bruno Gonçalves

bgoncalves@gmail.com

Affiliations Aix-Marseille Université, CNRS, CPT, UMR 7332, 13288 Marseille, France, Université de Toulon, CNRS, CPT, UMR 7332, 83957 La Garde, France

David Sánchez

Affiliation Instituto de Física Interdisciplinar y Sistemas Complejos IFISC (UIB–CSIC), E-07122 Palma de Mallorca, Spain

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BG DS. Performed the experiments: BG. Analyzed the data: BG. Wrote the paper: BG DS.