Designable integrability of the variable coefficient nonlinear Schrödinger equation

Details Designable integrability of the variable coefficient nonlinear Schrödinger equation Designable integrability of the variable coefficient nonlinear Schrödinger equation

2010-08-15

arxiv.org/abs/1008.2517v1

Nonlinear Sciences

Exactly Solvable and Integrable Systems

11 pages, 5 figures, accepted by Studies in Applied Mathematics

Scientific paper

The designable integrability(DI) of the variable coefficient nonlinear Schr\"odinger equation (VCNLSE) is first introduced by construction of an explicit transformation which maps VCNLSE to the usual nonlinear Schr\"odinger equation(NLSE). One novel feature of VCNLSE with DI is that its coefficients can be designed artificially and analytically by using transformation. A special example between nonautonomous NLSE and NLSE is given here. Further, the optical super-lattice potentials (or periodic potentials) and multi-well potentials are designed, which are two kinds of important potential in Bose-Einstein condensation(BEC) and nonlinear optical systems. There are two interesting features of the soliton of the VCNLSE indicated by the analytic and exact formula. Specifically, its the profile is variable and its trajectory is not a straight line when it evolves with time $t$.

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