| Affiliation: | 1. Center for Nonlinear Studies and Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;2. Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, United States of America;1. Department of Physics, University of California, Berkeley, CA 94720, USA;2. Materials Sciences Division, Lawrence Berkeley National Laboratories, Berkeley, CA 94720, USA;1. Department of Mathematics, University of Patras, 26110 Patras, Greece;2. Department of Nuclear and Particle Physics, Faculty of Physics, University of Athens, 15771 Athens, Greece;3. Mécanique et Gravitation, Université de Mons, 7000 Mons, Belgium;4. Department of Mathematics, University of Surrey, Guildford GU2 7XH, UK |
