Wavepacket delocalization, self-trapping and fragmentation in discrete chains with relaxing nonlinearity
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- 作者：R.P.A. Limaa ; b ; rodrigo@fis.ufal.br" class="auth_mail" title="E-mail the corresponding author ; Iram Glé ; riaa ; iram@fis.ufal.br" class="auth_mail" title="E-mail the corresponding author ; C.H. Cí ; ceroa ; M.L. Lyra ; a ; marcelo@fis.ufal.br" class="auth_mail" title="E-mail the corresponding author ; F.A.B.F. de Mouraa ; fidelis@fis.ufal.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Localization ; Third-order nonlinearity ; Wavepacket dynamics ; Self-trapping transition
- 刊名：Communications in Nonlinear Science and Numerical Simulation
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：44
- 期：Complete
- 页码：159-166
- 全文大小：1532 K
文摘
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Nonlinear contributions strongly affect the wave dynamics in discrete lattices.
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The relaxation process of the nonlinearity molds the asymptotic wavepacket distribution.
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Asymptotic solutions with extended, self-trapped and fragmented wavepackets have been identified.
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The phase diagram in provided evidencing a crossover regime with chaotic-like dynamics.