About the Authors

James M. Chappell

james.m.chappell@adelaide.edu.au

Affiliations School of Chemistry and Physics, University of Adelaide, Adelaide, South Australia, Australia, School of Electrical and Electronic Engineering, University of Adelaide, Adelaide, South Australia, Australia

Azhar Iqbal

Affiliation School of Electrical and Electronic Engineering, University of Adelaide, Adelaide, South Australia, Australia

Derek Abbott

Affiliation School of Electrical and Electronic Engineering, University of Adelaide, Adelaide, South Australia, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the paper: JMC AI DA. Initial development: JMC DA. Mathematical analysis: JMC AI. Document production: JMC AI. Paper oversight and checking: AI DA.