期刊
EUROPEAN PHYSICAL JOURNAL PLUS
卷 129, 期 10, 页码 -出版社
SPRINGER HEIDELBERG
DOI: 10.1140/epjp/i2014-14234-8
关键词
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资金
- National Natural Science Foundation of China [61275001]
- Qatar National Research Fund (a member of the Qatar Foundation) [NPRP 6-021-1-005]
By applying the similarity transformation we find analytical solutions of the generalized nonlinear Schrodinger equation with spatially modulated parameters and a special external potential in the form of periodic breathing nonlinear wave packets. These breathers are built by the products of paraboliccylinder functions and the one-soliton solutions with the continuous-wave background or the second-order soliton solutions of the standard nonlinear Schrodinger equation with constant coefficients. Some examples of such composed solutions possessing applicative potential are given, in which the breathers appear in different forms. The numerical simulations are performed to compare the numerical solution with the analytical solution and to confirm the stability of the breathers found.
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