Skryabin, Dmitry V. and Firth, William J. (1999) Modulational instability of bright solitary waves in incoherently coupled nonlinear Schrödinger equations. Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 60 (1). pp. 10191029. ISSN 1063651X

PDF (strathprints006474.pdf)
strathprints006474.pdf Download (354kB)  Preview 
Abstract
We present a detailed analysis of the modulational instability (MI) of groundstate bright solitary solutions of two incoherently coupled nonlinear Schrödinger equations. Varying the relative strength of crossphase and selfphase effects we show the existence and origin of four branches of MI of the twowave solitary solutions. We give a physical interpretation of our results in terms of the groupvelocitydispersion (GVD) induced polarization dynamics of spatial solitary waves. In particular, we show that in media with normal GVD spatial symmetry breaking changes to polarization symmetry breaking when the relative strength of the crossphase modulation exceeds a certain threshold value. The analytical and numerical stability analyses are fully supported by an extensive series of numerical simulations of the full model.
Item type:  Article 

ID code:  6474 
Keywords:  modulational instability, Schrodinger equations, solitary solutions, spatial solitary waves, polarization, bright solitary waves, Plasma physics. Ionized gases, Physics, Physics and Astronomy(all), Mathematical Physics, Statistical and Nonlinear Physics, Condensed Matter Physics 
Subjects:  Science > Physics > Plasma physics. Ionized gases Science > Physics 
Department:  Faculty of Science > Physics 
Depositing user:  Miss Darcy Spiller 
Date Deposited:  08 Jul 2008 
Last modified:  12 Dec 2015 08:38 
Related URLs:  
URI:  http://strathprints.strath.ac.uk/id/eprint/6474 
Actions (login required)
View Item 