Modulational instability and discrete breathers in discrete cubic–quintic nonlinear Schrodinger equation

• Main Authors: Abdullaev, Fatkhulla Kh., Bouketir, Ahmed, Messikh, Azeddin, Umarov, Bakhram
• Format: Article
• Language: English
• Published: Elsevier 2007
• Subjects: QC Physics
• Online Access: http://irep.iium.edu.my/12129/1/sdarticle2Modulational_instability_and_discrete_breathers_in_the_discrete_cubic%E2%80%93quintic.pdf; http://irep.iium.edu.my/12129/; http://www.sciencedirect.com/science/article/pii/S0167278907001583

We investigate the properties of modulational instability and discrete breathers in the cubic–quintic discrete nonlinear Schr¨odinger equation. We analyze the regions of modulational instabilities of nonlinear plane waves. Using the Page approach [J.B. Page, Phys. Rev. B 41 (1990) 7835], we derive...