J. Phys. Colloques 49 (1988) C8-1599-C8-1600
MULTI-FRACTALS OF STRANGE ATTRACTORS IN PARALLEL-PUMPED SPIN-WAVE INSTABILITIESK. Nakamura1, 2, M. Mino3 et H. Yamazaki3
1 The James Franck Institute, The University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, U.S.A.
2 On leave from Fukuoka Institute of technology, Higashi-ku, Fukuoka 811-12, Japan.
3 Department of Physics, Faculty of Science, Okayama University, Tsushima-naka-3, Okayama 700, Japan
Strange attractors beyond the critical point are numerically studied on the basis of a theoretical model for parallel-pumped spin-wave instabilities. In the transition region leading to the growth of a high dimensional attractor, a singularity spectrum is found to show interesting bifurcations.