J. Phys. IV France 08 (1998) Pr6-221-Pr6-226
Particles, waves, and chaos in a driven nonlinear systemM. Cirillo and V. Merlo
Dipartimento di Fisica and Unità INFM, Università di Roma Tor Vergata, 00133 Roma, Italy
We present evidence that the autonomous sine-Gordon system, subject to time-independent boundary conditions, gives rise to two fundamental families of stable dynamical configurations : particle (soliton) excitations and linear mode-like oscillations. The two dynamical configurations are clearly separated by a threshold value of a boundary parameter. The competition between these two basic dynamic families gives rise to chaotic motion of solitons and unstable oscillatory patterns for a threshold value of a boundary parameter.
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