Localized structures of the (3+1)-dimensional nonlinear Schrödinger equation with different diffractions and power-law nonlinearities in PT-symmetric potentials

被引：0
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作者：
Li-Hua Wang
Ji-Tao Li
Shao-Feng Li
Quan-Tao Liu
机构：
[1] Zhoukou Normal University,School of Physics and Telecommunications Engineering
[2] Wuhan University of Technology,State Key Laboratory of Silicate Materials for Architectures
来源：
The European Physical Journal Plus | / 131卷
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摘要：
We study a (3+1)-dimensional variable-coefficient nonlinear Schrödinger equation with different diffractions and power-law nonlinearity in PT-symmetric potentials. Considering different PT-symmetric potentials, we obtain two kinds of analytical sech-type localized soliton solutions. From these solutions, we analytically discuss the powers and power-flow densities. Moreover, we study compression and expansion of localized structures in the periodic distributed amplification system.
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