Erratum: Evolution of ultrasonic impulses in chains of spheres using resonant excitation D. A. Hutchins, J. Yang, O. Akanji, P. J. Thomas, L. A. J. Davis, S. Freear, S. Harput, N. Saffari and P. Gelat EPL, 109 5 (2015) 59903 Published online: 23 March 2015 DOI: 10.1209/0295-5075/109/59903