We establish the semiclassical limit of the one-dimensional defocusing cubic nonlinear Schrödinger (NLS) equation. Complete integrability is exploited to obtain a global characterization of the weak limits of the entire NLS hierarchy of conserved densities as the field evolves from reflectionless in
On the Semiclassical Limit of the General Modified NLS Equation
✍ Scribed by Benoı̂t Desjardins; Chi-Kun Lin
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 164 KB
- Volume
- 260
- Category
- Article
- ISSN
- 0022-247X
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✦ Synopsis
We study the semiclassical limit of the so-called general modified nonlinear Schrodinger equation for initial data with Sobolev regularity, before shocks appear ïn the limit system. The strict hyperbolicity and genuine nonlinearity are proved for the dispersion limit of the cubic nonlinear case. The limiting transition from the MNLS equation to the NLS equation is also discussed. ᮊ 2001 Academic Press q will study the behavior of solutions of the problem 1 ᎐ 2 as ប ª 0 and
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