2006/04/04 by R. Chacon
Physics and Astronomy · #cond-mat.mes-hall
paper · pdf · doi:10.1016/j.chaos.2005.10.076
11 pages, 3 figures
arxiv created 2006/04/04 · arxiv updated 2015/06/25
Spatiotemporal chaos arising from the competition between sine-Gordon-breather and kink-antikink-pair solitons by reshaping an ac force is demonstrated. After introducing soliton collective coordinates, Melnikov's method is applied to the resulting effective equation of motion to estimate the parameter-space regions of the ac force where homoclinic bifurcations are induced. The analysis reveals that the chaos-order threshold exhibits sensitivity to small changes in the force shape. Computer simulations of the sine-Gordon system show good agreement with these theoretical predictions.