About the Authors

Filippo Radicchi

Affiliations Howard Hughes Medical Institute (HHMI), Northwestern University, Evanston, Illinois, United States of America, Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois, United States of America, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Tarragona, Catalunya, Spain

Andrea Baronchelli

Affiliation Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Campus Nord B4, Barcelona, Spain

Luís A. N. Amaral

amaral@northwestern.edu

Affiliations Howard Hughes Medical Institute (HHMI), Northwestern University, Evanston, Illinois, United States of America, Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois, United States of America, Northwestern Institute on Complex Systems (NICO), Northwestern University, Evanston, Illinois, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: FR LANA. Performed the experiments: FR. Analyzed the data: FR. Contributed reagents/materials/analysis tools: FR AB. Wrote the paper: FR AB LANA.