About the Authors
Frankfurt Institute for Advanced Studies, Frankfurt am Main, Germany
Computational and Biological Learning Lab, Department of Engineering, University of Cambridge, Cambridge, United Kingdom
Department of Physics, Goethe-University, Frankfurt am Main, Germany
The authors have declared that no competing interests exist.
Conceived and designed the experiments: JL CS. Performed the experiments: CK. Analyzed the data: CK. Wrote the paper: CS JL CK. Derivation of analytical results: JL and CK. Preliminary experiments: CS and JL.