Embedded Soliton Solutions: A Variational Study
D. Pal, Sk. Golam Ali and B. Talukdar
Department of Physics, Visva-Bharati University, Santiniketan 731235, India
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Received: 19 10 2007; Revised version: 10 12 2007;
We use a variational method to construct soliton solutions for systems characterized by opposing dispersion and competing nonlinearities at fundamental and second harmonics. We show that both ordinary and embedded solitons tend to gain energy when the second harmonic field becomes weaker than the first harmonic field.
DOI: 10.12693/APhysPolA.113.707
PACS numbers: 42.65.Tg, 05.45.Yv