About the Authors

Friedrich Lenz

f.lenz@qmul.ac.uk

Affiliation School of Mathematical Sciences, Queen Mary University of London, London, United Kingdom

Aleksei V. Chechkin

Affiliations Max-Planck Institute for Physics of Complex Systems, Dresden, Germany, Institute for Theoretical Physics, NSC KIPT, ul. Akademicheskaya 1, Kharkov, Ukraine

Rainer Klages

Affiliation School of Mathematical Sciences, Queen Mary University of London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: FL. Wrote the paper: FL AVC RK.