1. Department of Chemical Engineering, Stanford University, California 94305, USA
2. Institute of Theoretical Physics, Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland
3. Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
4. RITMO Centre for Interdisciplinary Studies in Rhythm, Time and Motion, University of Oslo (UiO), Forskningsveien 3A, 0373 Oslo, Norway
5. Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, P.le Tecchio 80, 80125 Naples, Italy
6. Department of Physics, University of Miami, 1320 Campo Sano Ave, Coral Gables, Florida 33146, USA
7. Laboratoire Charles Coulomb UMR 5221 CNRS-UM, Université de Montpellier, Place Eugène Bataillon-CC026, F-34095 Montpellier, France