Transition to chaos in the conservative four-wave parametric interactions

✍ Scribed by R. Pakter; S.R. Lopes; R.L. Viana

• Book ID: 104297298
• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 700 KB
• Volume: 110
• Category: Article
• ISSN: 0167-2789
• DOI: 10.1016/s0167-2789(97)00130-9

✦ Synopsis

In this work, we analyze the transition from regular to chaotic states in the parametric four-wave interactions. The temporal evolution describing the coupling of two sets of three-waves with quadratic nonlinearity is considered. This system is shown to undergo a chaotic transition via the separatrix chaos scenario, where a soliton-like solution (separatrix) that is found for the integrable (perfect matched) case becomes irregular as a small mismatch is turned on. As the mismatch is increased the separatrix chaotic layer spreads along the phase space, eventually engrossing most part of it. This scenario is typical of low-dimensional Hamiltonian systems.